Setups
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Gearing
Stock gearing for the TLR 22S Dirt Late Model, with common pinions and their ratios.
| Pinion | Spur ÷ pinion | FDR | Rollout |
|---|---|---|---|
| 18T | 4.67 | 11.34 | 19.0 mm |
| 19T | 4.42 | 10.74 | 20.1 mm |
| 20T | 4.20 | 10.21 | 21.1 mm |
| 21T | 4.00 | 9.72 | 22.2 mm |
| 22T | 3.82 | 9.28 | 23.2 mm |
| 23T | 3.65 | 8.87 | 24.3 mm |
| 24T | 3.50 | 8.51 | 25.3 mm |
| 25T | 3.36 | 8.16 | 26.4 mm |
| 26T | 3.23 | 7.85 | 27.5 mm |
| 27T | 3.11 | 7.56 | 28.5 mm |
| 28T | 3.00 | 7.29 | 29.6 mm |
| 29T | 2.90 | 7.04 | 30.6 mm |
Shaded rows are the pinions most 1/10 2WD late model setups run on the stock spur. Rollout at a 68.6 mm tire.
What pinion should I run?
Tell us your motor and track and get a starting pinion for the TLR 22S Dirt Late Model, with the range racers in the class run.
Get a recommendation →Shop pinion gears at AMain →What pinion gear should I use on the TLR 22S Dirt Late Model?
It depends on your motor and the track. Racers in the 1/10 2WD late model class run a 20–27 tooth pinion in most setups, usually on a 81T spur for a final drive ratio near 8.81. Hotter motors (lower turns, higher Kv) take a smaller pinion; tight tracks gear down, open tracks gear up. For a starting pinion matched to your motor, use the So Dialed Pinion Recommender with the 22S Dirt Late Model selected.
What is the internal ratio (transmission ratio) of the TLR 22S Dirt Late Model?
The 22S Dirt Late Model has an internal ratio of 2.43:1. Final drive ratio = spur ÷ pinion × 2.43. With the stock 84T spur, a 18T pinion gives an FDR of 11.34 and a 29T gives 7.04.
How many teeth is the stock spur gear on the TLR 22S Dirt Late Model?
84 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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