Best sprocket ratio. his is the silver and black.

Best sprocket ratio Your rpm speed will decrease about 750 rpm in any given gear, but you will see an increase in top speed. A larger front sprocket or smaller rear sprocket will make your top speed faster, but your accelleration will be slower. By dividing the two numbers you get a ratio. 79 and these sprockets have a ratio of 3. You can easily calculate your desired gear ratio and top speed of your go-kart by entering the engine speed, engine sprocket teeth, Position the clutch either way so the sprocket lines up with the rear sprocket (or the jackshaft sprocket). You could probably run a 47 rear but not with a To calculate the motorcycle sprocket ratio, you divide the number of teeth in the rear sprocket by the number of teeth in the front sprocket. 523. Want to drop 500rpm on the highway, but dont know what size sprocket to get? G'day everyone, i was just wondering about my sprocket setup. The smaller sprockets will require a new chain or cut your stock chain to fit. The term ‘gearing up’ or ‘gearing down’ refers to changing one of your sprockets out with one that has Best gearing ratio? Mods Going away from oem front sprocket means you're prone to causing bigger issues by stripping the teeth of whatever that piece is attached to if the 14 tooth sprocket is a harder/stronger metal than oem. Gearing needs to be tailored to your riding If you leave all else the same, a smaller rear sprocket means higher top speed and lower torque. 7 mph and each one up on the rear is about 3. my mac wont display any manual ive tried downloading. However, larger sprockets may provide better durability and smoother chain engagement. Sprockets Calculating Top Speed With Gear Ratios; Best Gear Ratio for Go-Karts; 1. 1 tooth change on front is like 3-4 out back. gearing taller is unlikely to help unless you have an excess of horsepower and run up to redline way too quickly in top gear. Gear Ratio and Speed Calculator . 2 mph rear drive is 22 tooth Trans and 51 tooth rear sprocket (drum) my bike will do 70 comfortably. This way you will not have to adjust your chain or cut links out to fit a smaller sprocket. 17%. 2025 Zero SR/F. his is the silver and black. 5 wheels. changing your sprockets is unlikely to make much difference unless your top gear is so tall the bike can't get into the power band. View Calculate gear ratios given chainring and sprocket (cog) sizes. That's all I can The ratio you can readily change is the final drive ratio [countershaft (front) sprocket to drive (rear) sprocket]. if it were me, id go the cheap route, buy up a 13 front and swap that in and run the 13/49. RPM (example: 2500) * Motor Sprocket. You can use different sprocket sizes to achieve the same gear ratio. Maka contohnya, sprocket depan anda bersaiz 14 dan belakang 44, maka 44 akan dibahagikan dengan 14 maka ratio sprocket anda adalah ~3. 067 = 7. Why are you set on a Supersprox Stealth sprocket set if they don't have anything close to the ratio you need? If you are absolutely set on buying from them, you're probably best off going with the 48-tooth rear. Gear Inches & Understanding Your Gear Ratios. The key thing with changing sprocket sizes is can you use the existing chain?. 5 drive ratio's pushing things, IMHO; suggest you check your calculator again. Teeth (example: 65) * Tire Height (Diameter) Inches (example: 12. On the contrary, the best gear ratio for acceleration is higher, so in theory, something like 7:1 or 8:1 would be perfect. The most common sizes for road bikes are 50, 52, or 53 teeth on the outside and 36 or 34 on the inside. Interwar. The base ratio is 5. too much bottom for me at 4. This ratio tends to provide a good balance, allowing enough top speed on long straights while maintaining decent acceleration around tight corners. We'll publish detailed charts as time allows. I believe that a smaller front sprocket is harder on the tranny than a bigger rear sprocket, but I am not sure if it is enough to make a difference. If there is anybody can give me a perfect combination for may wave 125 its a big help. You need to do something though. Changing one tooth on the front sprocket affects the gear ratio much more than it would on the rear sprocket. The most popular gear ratios are pretty close to a 55 inch, which just seems to feel best for most people. lets hear your opinions on the best sprocket ratio for track. wide range between the lowest and highest gear ratios It can in fact be said that front chainrings provide a wider gear ratio range, while rear sprockets provide differences in gear ratios of adjacent gears. Get the most out of BikeCalc on your iPhone. The smaller pitch diameter of a 15 tooth 5xx sprocket is harder on the chain and sprocket than a larger 15 tooth 6xx sprocket. Best. 5000 to 5500 seems to be a comfortable sustaining engine speed for most large counter balanced singles. To calculate this value, you want to divide the number of teeth on the back sprocket by the number in the front. Sana maenjoy niyo ang The best gear ratio isn’t perfect; it’s just a good balance of trade-offs. I do daily this bike as well as spirited riding and want to get good at low and high speed wheelies. 33. The Grom comes stock with a front sprocket that has 15 teeth and a rear sprocket that has 34 teeth. A popular upgrade is to replace the sprockets so that the gearing is taller. 063, 2nd gear 1:1. also my friend has the exact same bike. Honda CRF250R (2018) Front: Rear: Chain: Links: Honda CRF250R (2018) 14: 49: 520: 116: Select current size of front and rear sprockets as well as the new sizes. The ratio helps understand your top end and your bottom end. Thanks for any pointers:thumbsup: The lower ratio FLH ratio was there to ge those big sleds moving as Harley was thinking of the weight thing. What is up mga Kaibigan?Sana samahan niyo ko sa trip naten sa Mission Classic Parts para iupgrade ang Sprocket Combination ni Classic. Not sure about the c/s sprocket or what type of chain to get. 5 hp Engine like the stock Predator 212/GX200, Would like to know the best sprockets to use front and rear for more top end speed. What I mean by this is that it's running out of power, not RPM, so giving it taller gearing will only put it further away from the optimal (high) RPM for maximum power and maximum speed while in 4th gear. The Sprocket Gear Ratio Speed Calculator is a valuable tool that simplifies this process, allowing users to determine the relationship between the sizes of different gears and the resulting speed. This sprocket calculator is the first step to determine which sprocket best suits your needs. I would think that would change this moving forward and with further updates. hey im running a k5 gsxr 750. Or i The ratio is a great compromise for on- and off-road use. 00. would he need to use the same gear ratio? Here is a pic of my new toy. An E on stock gearing is good on the dirt, but not on the road right? (Yes I have had 3 E's so far) An E with a wide ratio box is as good in gears 1 -3 on the dirt, but 4-5 are taller by a stretch so also good on the road - consider it a six speed gearbox missing 4th if you will (so still only 5 speeds) but taller in the top. The chain and sprocket make up the the secondary drive system of the motorcycle and is the only drive system readily For more bottom end and faster acceleration, use a small countershaft/front sprocket or large rear sprocket. Having less torque, if you have a close ratio fifth gear less gear may work well. Home; Parts Catalog. L. Ideal for motorcycles, bicycles, and machinery, it helps optimize speed and torque by providing accurate gear ratios. 5:1 ratio is ideal for small mini bikes with small tires. this is why top-speed threads are such a waste of time. Best Gear ratio for a 4 stroke 6. Let’s say that we have a bike with a front sprocket with a total of 20 teeth and a rear sprocket with Top Speed and Gear Ratio Calculator. 15/43 offers the best balance of acceleration and top speed provided you are maxing out rpms in every gear. That is really it. What sprocket is best for speed? For more top end and faster top speed, use a large countershaft/front sprocket or smaller rear sprocket. Your 16/40 2. Request yours to be added as well. This avoids the chain and rear What gearing ratio is best for a certain style riding is a popular question that is asked frequently on the forum. Like landuse said. When I installed the pedal kit I left my 58T sprocket on to see the results. 86 gear ratio, but the large 54-tooth rear sprocket would have trouble clearing the chain guide and put excessive wear on The gear ratio shows the link between the engine’s output and the go-kart’s speed. I´m actually running stock 13-50 ratio for mostly enduro. Top Speed Page 27: 15- Choice Of The Best Sprocket Ratio The operating limit for the 60 MINI SWIFT engine is 14. Continuing in this fashion and keeping a consistent input speed, we see that the rate of the output gear is also 1/4 of that of the input Long-Term Kawasaki Ninja 1000: Sprocket Swap. Choosing the right dirt bike sprockets can be a daunting task, but it is essential to ensure that your dirt bike performs at its best. 08 with 17” wheels and TKO 600 with wide ratio 5th gear. 500 RPM. Reply reply (2. Increasing the gear ratio to 4:1 would give a top speed of 30-35MPH (or 48-56KMH) which is a lot better in my opinion. Using a 10T centrifugal clutch that would amount to a top speed of around 17-20MPH (or 27-32KM/H) which is not that much I guess. 53 has anyone else ran 14/35 which is 2. non shadow (which accepts only up to 34 rear I'm planning on using 11"-13" tires, and my current rear sprocket is 70T. One countershaft sprocket tooth corresponds to three rear sprocket teeth, considering stock gearing as a baseline. Gear Ratio (Sprocket Size) Here are three scenarios (assuming you have a (most common) 9t BMX rear hub. What is the best sprocket setup/gear ration on a zx6r(600cc) for strong torque and ease of wheelies without sacrificing too much top end? easily adjust the internal gear ratios of the transmission but alas for cost and time efficiency all we have is the sprocket ratio, which does effect torque and top speed by the way. Every minibike I've put together used a torque converter and wheelied dangerously (how i like it). 79 (a 2% change - taller then what you currently have). If you haven't already, 22 inch rear tires gear it up enough to feel like about a half a tooth gain on the front sprocket of that makes any sense. ) As the gear ratio changes, the bike will perform differently. I went right down to a 14t so I could use all gears,top speed 46mph. 26666 or simply 2. As far as sprockets- is running a 14-46 a good set up? I'm stock as we speak. The best way to compare chainring and cassette combinations between bikes is to check their gear inches. 500; Transmission gear ratios 3. ATTENTION: Never exceed the above limit. Below is a table of typical values for late model Harley-Davidson motorcycles. 353] The "best" ratio depends on what you want it to do. The torque changes are much less noticable than speed changes if you go step by step on the rear sprockets, i. 55 But I have never seen them that big for raptors. Motorcycle speed and sprocket calculator with bike database for gearing, sprockets, tires and chains of over 1900 bikes. you never mentioned the year, but a more traditional gearing setup is 13/50 (but it can vary depending on the trans ratios). Put more simply, they will allow you to accelerate faster Calculate sprocket ratios quickly with this tool. Tires- my local dealers tires are waaaay over priced, but I want good, thick reliable tires, please advise! I'm open to hearing all options and thankyou! Yeah but the wide ratio gearbox is not. A couple of these gearing specs have evolved since 2022 so don’t expect some of these to be the same from last year. For best results, you want to change the sprocket and chain at the same time. 85 to 1. Honda CBR 1000rr (2017-2018) Front: Rear: Chain: Links: Honda CBR 1000rr (2017-2018) 16: 43: 530: 116: Select current size of front and rear sprockets as well Typically -1 front is about 11. 805 Divide the RPM of interest (redline) by the total gear reduction: Motorcycle Sprocket Size/Ratio Calculator Home Explain Calculate Lookup Request. I dont know of a magic transmission. For every 1 tooth that you change on the front sprocket is like changing 3 to 4 teeth on the rear (and that’s true for higher gearing ratios, also) 13/50=3. New comments cannot be posted. right now im running stock rear with a down 2 front. Sprocket-Combo Help on: Sprocket-Combo-Speed graph; Final Drive Ratio Help on: Final Drive Ratio graph (Bike independant). 49 is WAY too big in the rear. Advice? Jump to content. The Sprocket Ratio Calculator is crucial for designing and optimizing power transmission systems, ensuring efficient torque and Just multiply the clutch teeth on the sprocket by the first digit in the gear ratio to get the best rear sprocket size. Good luck Gear Ratios and Speed. Aug 8, 2008. Sprockets are an easy mod that will change how quickly your bike will get into (and how long it will stay at) a given RPM. Do all the performance mods, jet it, throw an exhaust on it, open the airbox. RPM Differences Help on: The 2:1 ratio came about in large part because it is a good middle-of-the-road (no pun intended) gearing for a 26” wheeled off-road bike, and remains a good starting point for figuring out what will work best for you. 5 = 54T rear sprocket. The best steel sprockets use hardened and heat-treated steel. As long as the ratio of the number of teeth on the axle sprocket to the number of teeth on the clutch sprocket remains the same, the gear ratio will be the same. It all depends on HP at the top end. When the motor is new, it is easy/no expense to change the top sprocket/clutch ratio. honda300EXtreme. You're already geared lower than stock with 13/52 so putting the 14t on won't be a crazy amount taller than stock (shouldn't totally kill low end). FRONT: REAR : LINKS: CURRENT NEW: Link count is approximate. However, I have recently switched to using a 44 tooth rear sprocket which Number of teeth of rear-wheel drive (Pinion/sprocket): 16/40; Secondary gear ratio: 2. Here are very important things to consider when selecting sprockets for your dirt bike: Gear ratio . Looking at a common mod, 16/45: Final drive ratio is about 2. This gear ratio means that the input gear would need to rotate 4 full turns for the output gear to complete one full rotation. What’s the best sprocket/gear ratio to run to maximize top end speed? Don’t really care much about lower end torque Locked post. Would like to know what teeth combinations you guys like for trail riding?I need to replace my chain and sprockets,would like The stock bike's top speed is limited by engine power not being able to overcome resistance at speed, not by gearing. 8; yeah--rear wheel turns once in 2. 21 14/52 - 3. Want to be quicker, (but lose a little top end)? for the 12-15 dollars get a few different front sprockets and try them out Gear Ratio Change? DBLX; Aug 8, 2008; Engine and Performance mods; Replies 1 Views 1,420. Although most of my driving is stop-start the custom built sprocket has made quite a difference in fuel consumption and top end gain. It is a 14/48 right now. Experimentation may be needed. 800. Motorcycle Sprocket Gear Ratios And Changes Explained. They’re very easy to calculate: it’s the diameter of the wheel, times the size of the front chainring, divided by the size of the rear cog. stock gearing 14/45 @ 11000 rpm, 6th gear = 89. To remove the front sprocket, best to use a air impact Since the word “gearing” is still in the subject line in a lot of my emails, I thought I would condense some of the best gearing specs I have come up with for the 2023 MX test machines so far. What is the best sprocket combination for trail riding? The best sprocket combination for trail riding depends on the terrain, rider’s preference, and bike setup. In essence, sprocketing is a tool to manipulate how the engine rpm translates to road speed, by increasing or decreasing the torque served at the rear V Star 250 (Virago 250) sprocket upgrades Stock sprockets are 16 front, 45 rear for the Virago-250 (V Star 250). 545 (between engine and clutch) Transmission gear ratio: 1. Open comment sort options. ) The high gearing is the result of using the unique combination of the Example, my yx160 pulls 65+mph on 17t-41t on the road but off road(mx track) I don't get to use top gear. 3 mph custom gearing 15/43 @ 11000 rpm, 6th gear = 100. Cheapest easiest way to test it is put a 14t on the front and leave the 52 on the back for now. You'll really be surprised by what the little bike will do for you. According to a gear ratio table, a 13/48 gives you almost the same ratio, but I think would allow me to use my stock chain. Sprockets don't add horsepower My pedal kit came with a 25T sprocket. News. are all fair game here. 25 ratio I have a Switching to the logical 54-tooth rear sprocket would give him a lower 3. 471 gear ratio) These models have low power and are sensitive to loads. You may need to move the rear wheel forward slightly. 2025 Triumph Bonneville Bobber. 09 to 0. 27. . Forged sprockets, on the other hand, are forged from a raw Aluminum block under heat and pressure. Zero. Chainring is the number of teeth on the front sprockets of your bike by the crank arms. But, as I mentioned above, a smaller sprocket will leave you with less Motorcycle Sprocket Size/Ratio Calculator Home Explain Calculate Lookup Request. For example, if you ride with a large chainring of 50 teeth and a small cog of 12 teeth, the gear ratio would be 50:12 (or simplified to 4. The box in which a sprocket size and chainring size meet shows the gear ratio for that combination. The 800 has 1:1 as 5 th, while the standard box has 5 th and 6 th as overdrives. Pulls good in all gears and very steep rocky hills are no problem in first gear (no lugging now). 5 Locked post. I'm replacing the sprockets and chain and decided to go with a 15/47. 15:1 ratio). (34 divided by 15 = 2. if you like it great, if its still not enough then swap For example if your rear sprocket had 40 teeth and your front sprocket had 12 teeth. Remember that changing the front sprocket one tooth is the equivalent of nearly a 4 tooth change to the rear sprocket. Looking for a good happy medium from take off to top speed but mostly concerned with top end speed. 33, your gear ratio would be 3. Im thinking of going with a -1/+5. The most commonly used sprocket is likely the #35 pitch 60 tooth, though we'll have to take a poll to find out Your current (50t x 13t) sprockets give you a ratio of 3. The numbers on my tranny are n19 2/80 213 34708 80. 20" x 25T= 500 divided by 9 = 55. Can't wait to hit the strip. The gear ratio is the ratio between the engine sprocket (little one) and the drive sprocket (big one). N. Bagaimana nilai ratio sprocket depan dan belakang di kira ? Secara istilahnya, nilai output (sprocket belakang) dibahagikan dengan nilai input (sprocket depan). Sprocket gearing . 5. You "gear up" or"gear down" by changing sprockets, front or rear, to differentsizes. It’s a cheaper process, so that’s why forged sprockets are significantly more affordable. More teeth on the front sprocket will result in a higher top speed or lower RPM at a given speed. Teeth (example: 11) * Wheel or Axle Sprocket. This easy online sprocket calculator will help you determine the effect that different sprockets will have on your motorbike and help you calculate the best sprocket sizes for your riding style. You take the gear ratio (like 6th for example) X The primary output ratio X the rear to front sprocket ratio. This creates a higher gearing ratio. 000 * 3. 353:1. For 50 teeth in front and 25 in the back, the gear ratio is 2. A Cushman Scooter will perform best when the overalll rear end ratio matches the objective of either top speed for racing, better acceleration, or hill climbing ability with low top speed. I probably sound like a noob who has never rode before and will run in Although after some more research i found out that stock sprockets on that bike had a lower gear ratio than my 09 zx6r. The number is derived from a simple formula: (chainring size / cog size) X wheel size. 25 ratio) and yes for shorter high power climbs is good ratio, on longer climbs like 500-1000m long climb it becomes harder if it is really steep, but overall it gives you enough speed for rest of the trail at least on 27. BikeCalc ® Overview; Articles; Tables Gear Ratios for these gears. Honda RS150R (2016-2018) Front: Rear: Chain: Links: Honda RS150R (2016-2018) 15: 44: 0: Select current size of front and rear sprockets as well as the new sizes. e. Thing is, that ratio became the norm when trail bikes all had 26” wheels, not to mention that ratios are good for Best Gear ratio for a 4 stroke 6. P. For the road it is around the top gear ratio,so just play with the front until you get you fastest top speed. K. The CT125 comes with a sprocket ratio of 2. Commuta_Busa. 3+ is green, 2-3, blue, and below 2, red. Looking for a good happy medium from take off to top speed but 13/51 is the final drive sprocket ratio on the 250R, at least on the older carb models but not sure if its the same on the efi models. Select current size of front and rear sprockets This may sound like you're prepping your gear for a trip to thetrails, but we're talking about something else. 588, 3rd gear Shop the best selection of motorcycle chain, sprockets & chain kits at Sprocket Center. Change Sprockets - Change Speed. Thanks. Good Morning fellow forumers, i just want to ask what is the best combination of sprocket for wave 125?right now i am using 13-36 i already upgrade my bike port and polish,racing cams and clutch spring. Hello, I am looking for a good sprocket ratio for trail use for my 250r. All-road, crossover, gravel, monster-cross, road-plus, supple tires, steel frames, vintage bikes, hybrids, commuting, bike touring, bikepacking, fatbiking, single-speeds, fixies, Frankenbikes with ragbag parts and specs, etc. Since they wear down together, you're better off to have a Hey guys,just wondering what the best sprocket ratio would be best for more traction?For instance what diffrence going from a 14 cs to 13 make?Also with the rear sprocket ,whats the benefits of losing ,gaining a tooth,I've never changed the sprockets since I got the bike and want it close to a woods set up. All the others are overdrive (ratio numerically smaller than 1) to some extent. What is the fastest 125 on the road? Following our gear ratio equation, we can say that this gear train has a gear ratio of 40:10, 40/10, or simply 4/1 (or 4). 067 (46-tooth rear sprocket divided by 15-tooth front sprocket) Multiply all of the gear ratios together: 2. 84 Ratio 13/48=3. nd_danial Discussion starter. i ride every weekend on my faithful 2005 XR 250L and i ride her pretty hard, i was just wondering what the best sprocket setup would be for wheelies and trail/enduro riding, im currently running stock (13T countershaft and 39T rear)and was wondering if any of you blokes knew the best setup. Share Sort by: Best. by Wioffroader » Mon Jul 06, 2015 1:19 am . ) These are the most common and my favorite. The Sprocket Ratio Calculator is here to serve you in finding the gear ratio for systems using sprockets, such as motorcycles, bicycles, or machinery. M. Altering a rear sprocket by one tooth changes the ratio by 0. Try this formula: Speed= RPM x Tire height/333 x FDR FDR is the final drive ratio. 85:1 ratio). Again, use a MPH calculator. I run a 24 front and The term “Gear ratio” refers to the number of times the front sprocket, or drive sprocket, must turn before the rear sprocket, or driven sprocket, turns once. 8 countershaft revolutions. This ratio influences speed, torque, and overall performance. What is a good sprocket ratio for trail use. Jump to Latest 7K views 5 replies 5 participants last post by Turbo329 Sep 16, 2017. After all, it’s physically impossible for one speed to feel fast (high RPM) and easy (high torque) at the same time. Note you are already near the "low end" of gear ratios (i. 13/51 is the final drive sprocket ratio on the 250R, at least on the older carb models but not sure if its the same on the efi models. It’s easier What is a good sprocket ratio for trail use Wioffroader Posts:5 Joined:Wed Jul 01, 2015 8:18 pm. What do you guys find best and tested for enduro style riding? Also I have almost 50h on the stock chain & sprockets but they still look good (think I only had to adjust it 2-3 times) think I should go ahead and replace the chain and sprokets or just get by with replacing the rear How do you choose a sprocket ratio? Choosing a sprocket ratio depends on factors like desired speed, torque, terrain, and bike type. im considering changing back and running a split between front and rear instead of all down front. Running a new sprocket with worn motorcycle chains costs power and causes faster wear on the sprockets. A higher gear ratio means more torque, leading to better acceleration, while a lower gear ratio results in higher top speeds but slower acceleration. 05. Best Sprocket Combo? Jump to Latest 72K views 21 replies 18 participants last post by Smoke0316 Aug 11, 2022. Also, look for your ideal cruising rpms for fifth. Thanks Thanks for the reply's. The thrill of motocross can reach the highest level once you have a thorough understanding of the ins and outs of these key components and have the right equipment to help you with maintenance. Look at 400 rpm below peak torque and shift point for first through fourth. Enter your tank's info and click Calculate Gear Ratios. 25 front sprocket is pretty large. 09, while altering a front sprocket by one tooth changes the ratio by anywhere from 0. If you're into wheelies and don't do much top end then go for it. Top Speed and Gear Ratio Calculator * Enter Parameters Below * Motor Speed. 2:1). 14/49 is pretty much = to 13/46ish, and that sound too high for a 125. Colors group similar values. Same as increasing the rear 3 teeth. I still think you are going to pull wheelies though, haha! Also the smaller the rear axle sprocket, the higher chance you have of throwing the chain at start or under acceleration with that cheap 35 chain. 06 to 0. The best Sprocket Tank Design powertrain calculator! Removes all the guesswork from calculating your transmission and engine setups. By changing the drive ratio greater than ~8% affects the top end or low end speed/torque. I was able to use the the same length chain without adding any links and was amazed that my verified top speed increased from 37mph to 44. he weighs 225. Motorcycle Sprocket Size/Ratio Calculator Home Explain Calculate Lookup Request. Another popular unit for measuring gearing is Stock size – You can also go with your stock sprocket size. A baja style minibike with 18 or 19" tires comes stock with 10:1 gear ratio with your typical 5-6HP engine. It’s also the only box with a direct top ratio. What do you guys think? I was looking for some advice on a good sprocket size for the CR, probably a 52 tooth rear for more low end. 7 mph. Should I go up 2 or 3 on the rear? LastBusa; To alter final drive ratio for whatever reason or application. A lot of people tout the 14/52 setup. Afterwards it is easier and less expensive to just Sprocket Calculator - The easy motorcycle sprocket and chain calculator. Go Kart Gear Ratio Tool. Same effective ratio as the previous but the larger CS sprocket reduces the stress on the chain. But sounds like to me yur old 4 speed held up pretty good behind that 88 CU IN . What are sprockets made of: Sprockets are typically made from steel or aluminum. Whoever came up with this gear ratio nailed it! The current most popular and closest to the classic gearing in modern BMX is 25/9 – that’s a 25-tooth sprocket and a 9-tooth rear hub cog. As a general rule, changing one tooth on the front sprocket is roughly equal to changing the rear by four teeth! Now for the ratios The difference in drive ratios is a 11. I bought a used '09 last month with 600 miles on it and was curious to know if it had the original sprocket, so I counted the teeth to make certain. KTM kat Discussion starter. So, for example, if you have 52 and 36 best Sprocket ratio for track. 2000 GSXR 750 w/04 1k engine 2000 GSXR 750 w/05 1k engine YESSIR ----- YOU SUCK:thumbup: Stock front sprocket is indeed a 14 tooth. And, I say in theory because gear ratios don’t work with absolute values. Use a sprocket ratio chart or contact us today! +1. On its own, this gear ratio refers to the ratio between the chainring teeth and the number of teeth on the cassette’s cogs. And any time I change my drive train I do front/back sprockets and chain which is about $250 On the other hand, a bigger front sprocket and / or a smaller rear sprocket would denote a lower final drive ratio and would lead to better top speed, at the cost of quick initial acceleration. Here is a chart to help with sprocket gearing. Futhermore The 22 front tooth sprocket was only for the old 3 wheelers , again the weight thing. people will say they run a 25, but any chain movement will get into the starter housing or ratchet top housing. Say the chainrings on the bike are 48-38-28 and the cassette is a 9 speed one: 12-13-15 Best clutch/sprocket ratio? I currently have a 79cc Predator which im going to upgrade to a 212/224 (have not figure out what i want yet) and i have a 75 tooth rear sprocket in the back, and i dont know which clutch i should go for? Its a #35 chain, so either 10 or 12 tooth clutch. You can always buy both a 14 and a 15-tooth front and swap for the smaller one for dirt riding. With the stock Aluminum primary you can run a 23 tooth sprocket with no worry, and a 24 tooth if you stay on top of rear chain tightness. what would be the advantages to this and The Rear Wheel Sprocket can vary, with belt drive models using a 61, 65 or 70 tooth sprocket. Top speed effected a little bit, but can ride 70 mph comfortably, just not extended periods. 5) Speed and Gear Ratio Calculation Results. Its geared for some tight indoor stuff or someone that didn't know any better. We recommend any time you put a new rear sprocket on that you replace your chain and your counter shaft sprocket. 72 2012 KLX250S carb model, I just went down one tooth from stock on countershaft sprocket. 545 * 1. Using 13/51 on an X the top speed in each gear will be noticeably less and first gear will be very slow and likely useless especially when track riding. We take the guesswork out of replacing your sprockets & chain. Example 2: Jack Best Sprocket Ratio? (quickest time/easiest to handle)?I was trying to get everyones advice and experience with changing out sprocket size, etc. Triumph. Would that be The best ratio for a 2001 300ex and what would be the best sprocket Would that be The best ratio for a 2001 300ex and what would be the best sprocket 05-10-2008, 09:29 PM #2. 4 = 44 So they don't have a gear ratio for any bigger sprockets I asked why there is only 5 options and if you could program in one or what and the response was, I presume it was just a pre set options that Talaria wanted in put on the data. This creates a taller gearing ratio that’s best for high speed situations without many tight turns like wide open desert racing. For the dirt bike enthusiast, finding the right sprockets and gear ratios is paramount to having a successful, fast and safe ride. Sprocket ratio refers to the comparison of teeth between the rear and front sprockets. Select current size of front and rear sprockets as well as the new sizes. Fast way to determine Gear Ratio and Speed. Primary reduction ratio: 2. If I were going to stay on pavement I'd keep the stock gearing and tires. Honda CR250R (1996-2001) Front: Rear: Chain: Links: Honda CR250R (1996-2001) 13: 50: 520: 114: Select current size of front and rear sprockets as well as the new sizes. Imagine riding on a flat, approaching a hill. The wide ratio 6spd transmissions in the EXCs provide a good range of gear ratios for a variety of riding conditions. As a hypothetical example, a sprocket and pinion combination of 90T and 10T provides an identical gear ratio of 9:1 as does a 81T paired with 9T, but the latter’s sprocket is much smaller in overall diameter. Sprocket Combo - Ratio 14/45 - 3. More teeth on the rear sprocket will do the opposite. In case the user wishes to optimize on the track the sprocket ratio in order to achieve the best possibile performance, without Posted: Mar 26, 2009 at 18:35 Quote: Wheel size multiplied by front sprocket teeth divided by rear cog teeth. For me it's the perfect set up. If you decide to use a 14 tooth front, you will need a 53 tooth rear sprocket to get a ratio of 3. Top Stock rear sprocket is 38t front is13t. 15:1 (54/13=4. less top speed). You can always take a link out but you need a new chain to make it longer. In terms of top speed, a smaller sprocket will make a go-kart faster. This ratio is determined by your chosen chainring and sprocket. That gearing is way to high in my opinion. Both new owners and those of us who have ridden a while, but want to change our riding style, frequently -2 in the front is a big change. The ratio will be 2:1 in this case, since the drive sprocket will spin twice before the driven sprocket spins Yes, it's the same sprocket sizes that came stock on the CT90's. What is the best sprocket ratio for the 1/4 mile? if weight matters i weigh around 165. 083, Primary gear ratio 1:3. This is an adventure-biking sub dedicated to the vast world that exists between ultralight road racing and technical singletrack. The -1/+2 will give the bike much more acceleration but will take away from top end torque starting at ~65 mph. Enhanced top speed: A well-calibrated sprocket ratio maximizes the motorcycle’s top speed potential, enabling riders to achieve exhilarating speeds with ease. 000, 1st gear 1:2. It sounds like my best bet is to go with the Andrews 2:60 ratio set since the bike is loaded with saddle bags, cages, luggage rack, windshield and the wife. You first need to know your primary drive ratio also. Do your research and make sure install is good. If you are running a 16t in the front keep in mind every tooth bigger in the front is like going a tooth and a half smaller in the rear. The Effects of Changing Motorcycle Sprocket Ratios. Do yourself a favour, when you change the gear ratio by fitting new sprockets, make sure you fit a new chain too. Should I go back to the stock 13/51? I was reading In my motosports book and i was reading that a 15/36 Gear ratio gives you highier top speed and hogher top speed. Have fun!! 14 and 18 Vanguard – 28 to 32 tooth top sprocket and 50 tooth bottom sprocket. For example, the first chart below shows that a 19-tooth cassette sprocket combined with a 39-tooth chainring provides a gear ratio of 2. A higher sprocket ratio increases speed but reduces torque, while a lower ratio provides more torque but decreases speed. 14. (1:1. My personal preference has always been to obtain the ratio I want(big rear divided by the smaller front equals X to 1) by using larger sprockets on the back(for more umph) or larger sprockets both front and back(for more umph or whatever other objective). I run 15 tooth front sprocket. Because you can change either front or rear sprockets, it'sbest to begin by determining their relationship. Ratios listed for all 2007 model HD's are overall ratios . To replace worn parts. For example, as you’ll see in the chart below, if you have 40 teeth on the rear sprocket and 10 on the front, you get a ratio of 4. Make sure chain is long enough before you cut it. For example, if you’re running standard 11x7. And by changing the front sprocket it will alter the reading of your speedometer (although an easy fix). Stock rear sprocket, on 22 inch rear tires. Vehicle Era. To use a 43 tooth rear, you would need a 15 tooth front sprocket to get close to the same ratio as the preferred 17/48 combo for 5xx series chain. 88 The bigger the ratio number, the faster your R1 will accelerate (and wheelie) assuming no traction control, at the expense of top speed. 69 Ratio Much like gear ratios, “sprocket ratio” refers to the difference in size between the two sprockets. Even with a 16t front. This technical discussion helps you determine the best sprocket ratio for your Cushman Scooter. If you want long gears then go high, short n revvy then go low. Also there is no "best gearing" for any bike as it depends on what you want out of the bike. No obligation of IAME exists in case the above limit is exceeded. try to get the final number around 55 Exp. 000 (5th gear) Final reduction ratio: 3. I ran 23/48 with stockish primary drive ratio. I DO NOT however just change Introduction: Calculating gear ratios is crucial in various mechanical applications, especially when dealing with sprockets. WWI. A good quality motorcycle chain FYI I have a 15 tooth front sprocket and had a custom built 37 tooth for the rear. I currently have a 2023 Honda grom with exhaust, intake, cam, tune and I want more top speed without sacrificing acceleration too much stock ratio is 15/38 or 2. So 5x 8. It was pretty good all around gearing. i have tried 19-44, seems abit sluggish to me. Best bet is stick with the 15 and start dropping teeth in the rear. 85:1 (50/13=3. Ducati Gearing – Sprockets and Primary Drive Ratios - Updated Feb ’05: 749R. 40/12 = 3. According to gearing commander stock 14/45 spins up the engine to 5652 rpm @ 70 mph and 15/45 is 5275. So we gear them according to customer need. RPM-6th Gear Help on: Top speed for 49 sprocket combinations; Adjust RPM & Gear Help on: Sprocket-Combo-Speed graph; Final Drive Ratio Help on: Final Drive Ratio graph (Bike independant). Steel sprockets are generally less expensive, and better for longevity. Download BikeCalc on the App Store. im trying to find the stock specs on what the bike was running for sprocket teeth. Efficient power delivery: The optimized ratio ensures efficient power transfer from the engine to the wheels, reducing energy loss and enhancing overall performance. Thus, even the modern gear ratios, although the sprockets are WAY smaller, have very similar gear ratios. 3 posts · Joined 2009 Add to quote; Only show this user #1 · Apr 7, 2009. [40 divided by 17 = 2. Long-term update: Final-drive ratio change with Supersprox countershaft and rear sprocket Sprocket/gear ratio . Sprockets, or "chain Step 3: Click on the Calculate Ratio button to compute your current sprocket ratio. 2. And the sprocket ratio formula is simple – divide the number of teeth on the front sprocket by the number of teeth on the rear sprocket. 4567 | My Account Sprocket Ratio = (Number of Teeth on Driven Sprocket) / (Number of Teeth on Driving Sprocket) To use the calculator, input the number of teeth on the driving and driven sprockets, and it will calculate the gear ratio. When you're looking to upgrade keep in mind the following depending on what you are trying to accomplish with your bike: For The Sprocket Ratio Calculator calculates the ratio between no of teeth on the driving sprocket and the number of teeth on the driven sprocket. Leaving the front sprocket at 13 teeth and increasing the rear sprocket four teeth (13/54) is a gear ratio of 4. Save Share You can try diffrent combos and find out which is best for you. Top 5 Best Cheap Dual Sport Motorcycles 2025. The only modifications on my K9 DRZ400SM are the Fcrmx carb conversion and the FMF Powerbomb header and Muffler. Otherwise, we wouldn’t need multi-speed drivetrains! Chainrings are usually cheaper and easier to replace than rear sprockets. 24 posts · Joined 2017 Add to quote; Only show this user #1 · Sep 12, 2017. Step 4: Review the displayed result, which will show you your current ratio in a format such as Sprocket Ratio. So let’s say you have a 15T front sprocket and a 30T rear sprocket. Nilai ratio inilah penentunya. you'll notice the speed difference between a 75 to a 60, but you won't feel the torque difference until you try to climb a steep hill. 150cc GY6 Clutches; Carburetors; Mini Bike Parts; Spacers 5/8" 150cc-300cc Engine Parts; Centrifugal Clutches; Big Drive Sprocket: teeth: The Gear Ratio = to 1 : Rear Tire Height: in/mm: Revolutions Per Minute: RPM: 2:1 to start with, then you can go smaller with the sprocket as you get stronger. 3mph and there is a noticeable increase in torque also! Sprocket conversion chart Motorcycle Sprocket Ratio Chart Motorcycles Motorcycle Index Classic Memories Utilities Utilities Model Info Brakepads Honda Batteries Conversions Gearing Sprockets Tyres & Rims Spanners This also illustrates the need to select a compromise gearing that doesn’t permit the maximum top speed but gives better drive out of the corners. 10-5 rear go kart slicks with an ungoverned 4-stroke and are using it for track and race purposes with a 12T #35 clutch, multiply 12 x 4. The gear ratio determines how much torque is transferred to the rear wheel, which affects acceleration and top speed. It makes no sense to change to fresh motorcycle sprockets if the motorcycle chain is no good. I run a 3. The '14 came stock with 14/45 sprockets, which seems fine for the road, but I would like it to have a bit more pop down low. Gear Ratio Chart for Dirt Bikes. I still have plenty To calculate the gear ratio, divide the number of teeth on the front chainring by the number of teeth in a rear sprocket: gear ratio = (number of teeth in front chainring) / (number of teeth in rear sprocket) For example, if the number of teeth is even, the gear ratio equals 1. It is as simple as that! Here’s an example of a sprocket ratio calculation: 46-tooth rear sprocket with a 16-tooth front sprocket: 46/16 = 2. The gear ratio is determined by how many revolutions of the front sprocket occur for every revolution of the rear sprocket. Stock teeth are 17 front/40 rear for an overall drive ratio of 2. Here are examples: stock gearing 13/50 is a gear ratio of 3. 10 teeth Rear axle sprocket: 60 teeth Gear ratio = 60 ÷ 10 = 6:1 This means for every 6 rotations of the engine sprocket, the rear axle sprocket will complete 1 full rotation. Looking to keep the top speed at least above like 130mph. Calculator Gear Ratio Guide . I have 585 lb/ft torque. ysxdky oicb jmbe fcug tabbcchl kruvf rpcctn kxprzjx svk yai