Ask Miles, our Setup AI that’s been trained on the RC10 B7/B7D.
Stock gearing for the Team Associated RC10 B7/B7D, with common pinions and their ratios.
| Pinion | Spur ÷ pinion | FDR |
|---|---|---|
| 18T | 4.33 | 11.27 |
| 19T | 4.11 | 10.67 |
| 20T | 3.90 | 10.14 |
| 21T | 3.71 | 9.66 |
| 22T | 3.55 | 9.22 |
| 23T | 3.39 | 8.82 |
| 24T | 3.25 | 8.45 |
| 25T | 3.12 | 8.11 |
| 26T | 3.00 | 7.80 |
| 27T | 2.89 | 7.51 |
| 28T | 2.79 | 7.24 |
| 29T | 2.69 | 6.99 |
| 30T | 2.60 | 6.76 |
| 31T | 2.52 | 6.54 |
| 32T | 2.44 | 6.34 |
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 B7/B7D, with the range racers in the class run.
Get a recommendation →Shop pinion gears at AMain →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 B7/B7D's stock 78T spur that is about 22T for 6T and below, 22T for 7.5–8.5T, 31T 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 B7/B7D selected.
The RC10 B7/B7D has an internal ratio of 2.6:1. Final drive ratio = spur ÷ pinion × 2.6. With the stock 78T spur, a 18T pinion gives an FDR of 11.27 and a 32T gives 6.34.
78 teeth. Changing the spur moves every pinion's ratio at once; most racers leave the spur and tune with the pinion.
Kit shock setup (B7D). Part numbers link to AMain.
Out of the box the RC10 B7/B7D runs 30 wt front, 30 wt rear (Team Associated oil), on 2.5mm 2x1.8mm holes (#91934) front, 2.5mm 2x1.9mm holes (#92428) 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.
The kit springs are 3.4lb Gray (#91941) front, 1.9lb White (#91948) rear. Stiffer springs suit high grip and big jumps; softer springs add grip on slick or bumpy tracks.
What ride height for RC10 B7/B7D on smooth high-grip clay?
For a B7/B7D on smooth, high-grip clay, start at 17 mm front and rear. Racers commonly run about 16–18 mm at both ends on high-grip clay. Measure with the car race-ready on its...
Sep 29, 2026
What is a typical ride height for a Team Associated RC10 B7/B7D on high-grip clay?
For a B7/B7D on high-grip clay, a typical starting point is 16–18 mm front and rear. Drivers’ setups cluster around 16–18 mm at both ends, so try 17 mm front and rear first.
Sep 29, 2026
What springs do people use on high-grip tracks for Team Associated RC10 B7/B7D?
It depends on the surface. For high-grip carpet, the most common front spring listed is the 4.3 lb Orange; racers also use 4.0 lb Red and some stiffer aftermarket options. For...
Sep 29, 2026
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