Search results
The most popular gear ratios are pretty close to a 55 inch, which just seems to feel best for most people. The number is derived from a simple formula: (chainring size / cog size) X wheel size. Another popular unit for measuring gearing is Roll Out in inches.
11 sie 2007 · Look up a gear ratio chart for a 24" wheel, and stay around 55 gear inches, that is about average.
31 paź 2022 · For example, a 700c wheel (the road bike standard) moves 2.31 meters for every revolution. So, one revolution of the pedals at a gear ratio of 39/28 will take you 3.23 meters (2.31 x 1.4). If you multiply this figure by your cadence – let’s say 100 rpm in this case – you can calculate the speed.
18 sty 2024 · Our bike gear calculator can show the ratios for the range of chainrings and cogs teeth so that you can check your bike gear ratios and gear inches in different settings: Choose the minimal value of the teeth in the chainring. Let's say it's 42. Pick the maximum number, 48, for example.
Wheel size. 29" 28" 27.5" 700c 650b 24" 20" 18" 16" 14" 12" Custom. Millimeters Centimeters Inches Feet.
How do you calculate gear ratios? The formula to find the gear inches for your bike is simple. Divide the number of teeth in the front sprocket, or freewheel, by the number of teeth in the rear sprocket, or freewheel and then multiply by the diameter of the rear wheel.
Follow the steps to calculate the gear ratio. Measure in millimeters the thickness of your rear tire across its tread when inflated, and select this value in the picker labeled tire thickness. Then do the same with the diameter of your rim up to its bead for the picker labeled rim diameter.
