# Final drive ratio

> The final drive ratio is the rear sprocket tooth count divided by the front sprocket tooth count; it sets how engine power is geared to the wheel.

- **Also known as:** Sekonder oran, Dişli oranı, Final drive, Gearing
- **Turkish term:** Son aktarma oranı
- **Category:** [Sprockets](https://motorsikletparcasi.com/en/category/sprockets)
- **Page:** https://motorsikletparcasi.com/en/glossary/final-drive-ratio

For example, a 14-tooth front and 42-tooth rear sprocket give 42 ÷ 14 = 3.00. A higher ratio (bigger rear or smaller front sprocket) gives livelier acceleration but less speed at the same rpm; a lower ratio drops cruising rpm.

The overall ratio to the wheel = primary ratio × [gear ratio](https://motorsikletparcasi.com/en/glossary/gearbox) × final drive ratio. See the effect of a change in percent with our [gear ratio calculator](https://motorsikletparcasi.com/en/tools/gear-ratio-calculator).

## Related terms

- [Chain and sprocket kit](https://motorsikletparcasi.com/en/glossary/chain-and-sprocket-kit): A chain and sprocket kit is the front sprocket, rear sprocket and chain that make up the final drive to the rear wheel.
- [Gearbox](https://motorsikletparcasi.com/en/glossary/gearbox): The gearbox transmits engine speed to the wheel through different ratios so the motorcycle can run efficiently at any speed.
- [Engine speed (rpm)](https://motorsikletparcasi.com/en/glossary/rpm): Engine speed is the number of crankshaft revolutions per minute (rpm), shown on the tachometer.

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- Source page: https://motorsikletparcasi.com/en/glossary/final-drive-ratio
- Last updated: 2026-10-09
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