【實用運動app】RolloutCalc|最夯免費app-綠色工廠好玩App

FOR BMX ONLY

The Rolloutcalc is the future of estimating your gear inch rollout. It takes the simple gear ratio formula one step further by giving you a more accurate number through utilizing the outer diameter ("O.D.”) of each specific tire brand. This is necessary because there is a standard deviation in outer diameters between tire manufacturers. For example, this means that for a 20”x1.75” tire, the rollout between a Tioga and Kenda will be different.

How it works: Select your cog, chainwheel, tire size and brand, then your rollout is calculated for you. Get the edge on your competition by knowing what they don’t!