Setups
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Gearing
Stock gearing for the Tamiya TT-01E Car, with common pinions and their ratios.
| Pinion | Spur ÷ pinion | FDR |
|---|---|---|
| 20T | 3.05 | 7.93 |
| 21T | 2.90 | 7.55 |
| 22T | 2.77 | 7.21 |
| 23T | 2.65 | 6.90 |
| 24T | 2.54 | 6.61 |
| 25T | 2.44 | 6.34 |
| 26T | 2.35 | 6.10 |
| 27T | 2.26 | 5.87 |
| 28T | 2.18 | 5.66 |
| 29T | 2.10 | 5.47 |
| 30T | 2.03 | 5.29 |
| 31T | 1.97 | 5.12 |
| 32T | 1.91 | 4.96 |
| 33T | 1.85 | 4.81 |
| 34T | 1.79 | 4.66 |
| 35T | 1.74 | 4.53 |
| 36T | 1.69 | 4.41 |
| 37T | 1.65 | 4.29 |
| 38T | 1.61 | 4.17 |
| 39T | 1.56 | 4.07 |
| 40T | 1.52 | 3.96 |
| 41T | 1.49 | 3.87 |
| 42T | 1.45 | 3.78 |
| 43T | 1.42 | 3.69 |
| 44T | 1.39 | 3.60 |
| 45T | 1.36 | 3.52 |
| 46T | 1.33 | 3.45 |
| 47T | 1.30 | 3.37 |
| 48T | 1.27 | 3.30 |
| 49T | 1.24 | 3.24 |
| 50T | 1.22 | 3.17 |
| 51T | 1.20 | 3.11 |
| 52T | 1.17 | 3.05 |
Shaded rows are the pinions most 1/10 4WD touring/gt setups run on the stock spur.
What pinion should I run?
Tell us your motor and track and get a starting pinion for the Tamiya TT-01E Car, with the range racers in the class run.
Get a recommendation →Shop pinion gears at AMain →What pinion gear should I use on the Tamiya TT-01E Car?
It depends on your motor and the track. In the 1/10 4WD touring/gt class, racers gear by final drive ratio: 6T and below near 7.34, 13.5T near 4.51, 17.5T near 4.51, 21.5T and up near 3.65. On the TT-01E Car's stock 61T spur that is about 22T for 6T and below, 35T for 13.5T, 35T for 17.5T, 43T for 21.5T and up. Tight tracks gear down, open tracks gear up. For a starting pinion matched to your motor, use the So Dialed Pinion Recommender with the TT-01E Car selected.
What is the internal ratio (transmission ratio) of the Tamiya TT-01E Car?
The TT-01E Car has an internal ratio of 2.6:1. Final drive ratio = spur ÷ pinion × 2.6. With the stock 61T spur, a 20T pinion gives an FDR of 7.93 and a 52T gives 3.05.
How many teeth is the stock spur gear on the Tamiya TT-01E Car?
61 teeth. Changing the spur moves every pinion's ratio at once; most racers leave the spur and tune with the pinion.
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