Recommended Final Drive Ratios (FDRs) are indicative only.
Use this calculator as a guide — not a guarantee. Always test and tune based on your specific setup. We strongly recommend using a motor fan.
Run Limit: Maximum 5 minutes of continuous use, followed by a cooldown period.
Monitor Temperatures: Check motor temperature after every run.
Overheating Risks: May result from ESC settings, vehicle weight, or driveline inefficiency.
User Responsibility: Adjust gear ratio if overheating occurs.
Internal Ratios: Internal ratios are based on publicly available information and may not reflect chassis updates or optional gear configurations. Please consult your manual to ensure this information is relevant to your setup.
Tire Diameter: Tire diameters are approximate, based on measurements of selected tires. Brand and style variations will affect diameter. For the most accurate gearing recommendations, manually enter the diameter of the tires you are using.
⚠️ Permanent motor and/or ESC damage may result from high temperatures ⚠️
⚠️ H.O.T. Ltd accepts no responsibility for damage caused by the use or misuse of this tool ⚠️