Setups
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Gearing
Stock gearing for the PR Racing SC201 R, with common pinions and their ratios.
| Pinion | Spur ÷ pinion | FDR |
|---|---|---|
| 16T | 4.81 | 12.61 |
| 17T | 4.53 | 11.87 |
| 18T | 4.28 | 11.21 |
| 19T | 4.05 | 10.62 |
| 20T | 3.85 | 10.09 |
| 21T | 3.67 | 9.61 |
| 22T | 3.50 | 9.17 |
| 23T | 3.35 | 8.77 |
| 24T | 3.21 | 8.41 |
| 25T | 3.08 | 8.07 |
| 26T | 2.96 | 7.76 |
| 27T | 2.85 | 7.47 |
| 28T | 2.75 | 7.21 |
| 29T | 2.66 | 6.96 |
| 30T | 2.57 | 6.72 |
Shaded rows are the pinions most 1/10 2WD truck setups run on the stock spur.
What pinion should I run?
Tell us your motor and track and get a starting pinion for the PR Racing SC201 R, with the range racers in the class run.
Get a recommendation →Shop pinion gears at AMain →What pinion gear should I use on the PR Racing SC201 R?
It depends on your motor and the track. In the 1/10 2WD truck class, racers gear by final drive ratio: 7.5–8.5T near 10.14, 13.5T near 8.27. On the SC201 R's stock 77T spur that is about 20T for 7.5–8.5T, 24T for 13.5T. Tight tracks gear down, open tracks gear up. For a starting pinion matched to your motor, use the So Dialed Pinion Recommender with the SC201 R selected.
What is the internal ratio (transmission ratio) of the PR Racing SC201 R?
The SC201 R has an internal ratio of 2.62:1. Final drive ratio = spur ÷ pinion × 2.62. With the stock 77T spur, a 16T pinion gives an FDR of 12.61 and a 30T gives 6.72.
How many teeth is the stock spur gear on the PR Racing SC201 R?
77 teeth. Changing the spur moves every pinion's ratio at once; most racers leave the spur and tune with the pinion.
Kit setup
Kit shock setup. Part numbers link to AMain.
- Front
- 650 cst
- Rear
- 500 cst
- Front
- 5.04lb Green #02540007 →
- Rear
- 3.64lb Red #02540011 →
- Front
- 2 x 1.8mm #17430118 →
- Rear
- 2 x 1.8mm #17430118 →
What shock oil does the PR Racing SC201 R come with?
Out of the box the SC201 R runs 650 cst front, 500 cst rear, on 2 x 1.8mm (#17430118) front, 2 x 1.8mm (#17430118) rear pistons. That is the kit setup; you will need to adjust it for your track conditions. The RC Setup App can help dial it in.
What springs does the PR Racing SC201 R come with?
The kit springs are 5.04lb Green (#02540007) front, 3.64lb Red (#02540011) rear. Stiffer springs suit high grip and big jumps; softer springs add grip on slick or bumpy tracks.
Setup Help
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