This app is designed by R/C car fans , Powerful & Multifunction !
- Get all gear ratios possibilities of the gears the user owns
- Motor rotates once moving how many distance(Rollout)
- Car gear ratio database
- Finial gear ratio
- Internal gear ratio
- Dynamic gear ratio chart
- Easy screen capture for share gear ratio chart

Calculation moving distance you can accurately set the gear ratio for different types vehicle(eg...Touring, M-Chassis, F-1, 1:12)