Go-Kart Gear Ratio & Speed Calculator
Required Data Entry
Notes:
- Use realistic engine RPM (e.g. 2400–9000). Typical small engines are 3000–4000 RPM.
- A low gear ratio provides more torque and pulling power but less speed, making it better for acceleration, hills, and heavier loads (ie 9:1). A high gear ratio provides more speed but less torque, making it better for higher top speeds and lighter loads (4:1).
- Clutches prefer = 35 mph; torque converters can work up to ~45 mph (flat terrain).
