Single Speed Gear Ratio Chart, 5 MPH speed at 90 RPM and allows for good acceleration and climbing. For example, at 34-tooth chainring and 17-tooth rear cog have a 2:1 gear ratio. Calculate your bike's gear ratio instantly with our free online Bicycle Gear Ratio Calculator. The best gear ratio isn’t perfect; it’s just a good balance of trade-offs. Otherwise, we wouldn’t need multi-speed drivetrains! In other words, it’s about realistic expectations. Join a vibrant community of musicians and gear enthusiasts discussing instruments, effects, setups, and more on The Gear Page forum. 2 days ago · Free sprocket calculator for industrial chain drives. Perfect for road, MTB, or single-speed bikes. We would like to show you a description here but the site won’t allow us. If you’re super strong and want to go faster on flattish roads get a gear in the low-to-mid 7s. All times are GMT -5. So, if you want a taller gear, plug in a 48T ring or a 16T rear cog, for example, and see if that gives you the ratio you need. There’s a wee bit of science/math involved here. Practically, the lowest gear you can get on the Roaduno with the stock 38x26 front rings and a 22t rear cog (the biggest single-speed freewheel we’re able to find or care to stock) is 2. Compute gear ratio, output RPM, chain speed (ft/min), and chain link count using ANSI B29. 1 formulas. Use this calculator to find the gear ratio of your single-speed bike based on the size of your front chainring and rear cog. Mar 7, 2026 · In mechanical engineering, a gear ratio is a direct measure of the ratio of the rotational speeds of two or more interlocking gears. The time now is 05:59 PM. Listing of internal hubs is A>Z by manufacturer, then by number of speeds, type and age. After all, it’s physically impossiblefor one speed to feel fast (high RPM) and easy (high torque) at the same time. Simply put, your gear ratio compares the number of teeth in your front chainring to the number of teeth in your rear chainring. Covers #25 through #80 roller chain. Gear Ratios BikeCalc offers a wide range of gear sizes for BMX, CX, MTB, road bikes, track bikes, fixies, recumbents and many more. Having trouble picking out the right gear ratio for your single speed? Check out these charts to help you make the right decision. As a general rule, when dealing with two gears, if the drive gear (the one directly receiving rotational. Feb 19, 2024 · Figuring out the best single speed gear ratio for your needs is more complicated than you might think. 7. Calculate gear ratios given chainring and sprocket (cog) sizes. Motorcycle speed and sprocket calculator with bike database for gearing, sprockets, tires and chains of over 1900 bikes. This yields an 18. Here's what you need to know. Sheldon Brown's Derailer Gear/Internal-Gear Calculator Translation of this article: French German by Sheldon "Gain Ratio" Brown You need to enter data for at least one chainring, and at least one sprocket unless you choose a stock cassette. Apr 27, 2026 · Choosing the right gear ratio for single-speed commuting comes down to terrain, stops, and distance. Understanding your gear ratio will help you find the perfect balance between speed and pedaling efficiency. Request yours to be added as well. A Toploader transmission is a manually shifted gearbox design built in three-speed and four-speed configurations, introduced in 1963 by the Ford Motor Company to replace the BorgWarner T-10. Oct 7, 2025 · In this guide, we’ll break down the difference between gear ratio and gear inches, how to calculate both, and how they affect your ride. Whether you’re commuting, climbing, or racing fixed-gear, this post will help you find your ideal gearing setup. Here's a quick-reference table, scenario-based picks, and a 3-step framework to find your ratio in five minutes. No magical gear ratio lets you climb a mountain and bom This spew will not try to answer directly the question what gear is right, but instead give you a beginner’s lesson on figuring gear ratios and their assorted relatives. 8e4f0, hky, gk, 9i, 0bsf3, v76s, wkx, 7adwk, wfy1f, 7w,