Bmx Bike Gearing Chart
44 16 2 75 x 19 5 53 625 gear inches 20x1 75 tire.
Bmx bike gearing chart. For exact gear measurement. 44 16 gear ratio with 20x1 75 tire is the most commonly used combination in bmx for exact gear measurement. Divide front gear by rear gear and multiply by tire diameter example. Classic bmx gearing evolved over the years to be 44 16 which has 55 gear inches.
Gear calculator 19 05 2020 v1 30 added option to select roll out 05 07 2013 v1 20 added more tire models and sizes 19 03 2007 v1 10. The most popular gear ratios are pretty close to a 55 inch which just seems to feel best for most people. Bmx bicycle racing gear charts basically if you are getting bad starts and aren t spinning the gear out 3 4 way down the first straight then the gearing is too hard. Most pro bmxers run approximately 54 gear inches.
Try going one tooth lower in front unless your gearing is waaay hard then you could try either going up 1 tooth in back or down 2 to 3 teeth in front. 44 16 2 75 x 19 5 53 625 gear inches 20x1 75 tire. If you don t need a calculator and just want to see a standard bmx gear chart then click here. Gear inches are used to give a numberical value to how a particular chainwheel cog combination will feel.