Gear Ratios
Gear Ratios Guide
Gear ratios control acceleration vs top speed.
Common Ratios
Ratio Characteristics
5:1 Balanced 4:1 Speed focused 3.7:1 Maximum speed
Visual

Decision Guide
Technical Track: - 5:1 ratio - better acceleration after jumps
Speed Track: - 3.7:1 ratio - higher top speed
Always test gearing together with motor choice.