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Gearing
Stock gearing for the Custom Works Enforcer 8 Gearbox, with common pinions and their ratios.
| Pinion | Spur ÷ pinion | FDR |
|---|---|---|
| 19T | 4.58 | 11.95 |
| 20T | 4.35 | 11.35 |
| 21T | 4.14 | 10.81 |
| 22T | 3.95 | 10.32 |
| 23T | 3.78 | 9.87 |
| 24T | 3.63 | 9.46 |
| 25T | 3.48 | 9.08 |
| 26T | 3.35 | 8.73 |
| 27T | 3.22 | 8.41 |
| 28T | 3.11 | 8.11 |
| 29T | 3.00 | 7.83 |
| 30T | 2.90 | 7.57 |
| 31T | 2.81 | 7.32 |
| 32T | 2.72 | 7.10 |
Shaded rows are the pinions most 1/10 2WD sprint setups run on the stock spur.
What pinion should I run?
Tell us your motor and track and get a starting pinion for the Custom Works Enforcer 8 Gearbox, with the range racers in the class run.
Get a recommendation →Shop pinion gears at AMain →What pinion gear should I use on the Custom Works Enforcer 8 Gearbox?
It depends on your motor and the track. In the 1/10 2WD sprint class, racers gear by final drive ratio: 7.5–8.5T near 8.13. On the Enforcer 8 Gearbox's stock 87T spur that is about 28T for 7.5–8.5T. Tight tracks gear down, open tracks gear up. For a starting pinion matched to your motor, use the So Dialed Pinion Recommender with the Enforcer 8 Gearbox selected.
What is the internal ratio (transmission ratio) of the Custom Works Enforcer 8 Gearbox?
The Enforcer 8 Gearbox has an internal ratio of 2.61:1. Final drive ratio = spur ÷ pinion × 2.61. With the stock 87T spur, a 19T pinion gives an FDR of 11.95 and a 32T gives 7.10.
How many teeth is the stock spur gear on the Custom Works Enforcer 8 Gearbox?
87 teeth. Changing the spur moves every pinion's ratio at once; most racers leave the spur and tune with the pinion.
Setup Help
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