Setups
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Gearing
Stock gearing for the Team Associated RC10 B4 Family, with common pinions and their ratios.
| Pinion | Spur ÷ pinion | FDR |
|---|---|---|
| 18T | 4.50 | 11.70 |
| 19T | 4.26 | 11.08 |
| 20T | 4.05 | 10.53 |
| 21T | 3.86 | 10.03 |
| 22T | 3.68 | 9.57 |
| 23T | 3.52 | 9.16 |
| 24T | 3.38 | 8.78 |
| 25T | 3.24 | 8.42 |
| 26T | 3.12 | 8.10 |
| 27T | 3.00 | 7.80 |
| 28T | 2.89 | 7.52 |
| 29T | 2.79 | 7.26 |
| 30T | 2.70 | 7.02 |
| 31T | 2.61 | 6.79 |
| 32T | 2.53 | 6.58 |
Shaded rows are the pinions most 1/10 2WD buggy setups run on the stock spur.
What pinion should I run?
Tell us your motor and track and get a starting pinion for the Team Associated RC10 B4 Family, with the range racers in the class run.
Get a recommendation →Shop pinion gears at AMain →What pinion gear should I use on the Team Associated RC10 B4 Family?
It depends on your motor and the track. In the 1/10 2WD buggy class, racers gear by final drive ratio: 6T and below near 9.40, 7.5–8.5T near 9.22, 17.5T near 6.48. On the RC10 B4 Family's stock 81T spur that is about 22T for 6T and below, 23T for 7.5–8.5T, 33T for 17.5T. Tight tracks gear down, open tracks gear up. For a starting pinion matched to your motor, use the So Dialed Pinion Recommender with the RC10 B4 Family selected.
What is the internal ratio (transmission ratio) of the Team Associated RC10 B4 Family?
The RC10 B4 Family has an internal ratio of 2.6:1. Final drive ratio = spur ÷ pinion × 2.6. With the stock 81T spur, a 18T pinion gives an FDR of 11.70 and a 32T gives 6.58.
How many teeth is the stock spur gear on the Team Associated RC10 B4 Family?
81 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 (B4). Part numbers link to AMain.
- Front
- 30 wt
- Rear
- 30 wt
- Front
- 1
- Rear
- 1
What shock oil does the Team Associated RC10 B4 Family come with?
Out of the box the RC10 B4 Family runs 30 wt front, 30 wt rear (Team Associated oil), on 1 front, 1 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 Team Associated RC10 B4 Family come with?
The kit springs are 2.8lb Brown (#6493) front, 1.74lb Black (#6481) rear. Stiffer springs suit high grip and big jumps; softer springs add grip on slick or bumpy tracks.
Setup Help
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