RC Gearing Calculator
Use this calculator to work out your gear ratio and rollout. Lower rollout = more punch. Higher rollout = more top speed.
Quick Setup:
Results
Spur / Pinion Ratio: –Final Drive Ratio (FDR): –
Rollout (mm): –
Enter values and calculate
Recommended Parts
Simple Gearing Guide
- Bigger pinion = more speed, less punch
- Bigger spur = more punch, less top speed
- Lower rollout = stronger drive out of corners
- Higher rollout = more top speed