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Setups
Have a setup for the RC10 B74.2/D?
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Gearing
Stock gearing for the Team Associated RC10 B74.2/D, with common pinions and their ratios.
| Pinion | Spur ÷ pinion | FDR |
|---|---|---|
| 16T | 4.88 | 12.19 |
| 17T | 4.59 | 11.47 |
| 18T | 4.33 | 10.83 |
| 19T | 4.11 | 10.26 |
| 20T | 3.90 | 9.75 |
| 21T | 3.71 | 9.29 |
| 22T | 3.55 | 8.86 |
| 23T | 3.39 | 8.48 |
| 24T | 3.25 | 8.13 |
| 25T | 3.12 | 7.80 |
| 26T | 3.00 | 7.50 |
| 27T | 2.89 | 7.22 |
| 28T | 2.79 | 6.96 |
Shaded rows are the pinions most 1/10 4WD 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 B74.2/D, 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 B74.2/D?
It depends on your motor and the track. In the 1/10 4WD buggy class, racers gear by final drive ratio: 6T and below near 10.66, 7.5–8.5T near 10.00, 13.5T near 7.95. On the RC10 B74.2/D's stock 78T spur that is about 18T for 6T and below, 20T for 7.5–8.5T, 25T 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 RC10 B74.2/D selected.
What is the internal ratio (transmission ratio) of the Team Associated RC10 B74.2/D?
The RC10 B74.2/D has an internal ratio of 2.5:1. Final drive ratio = spur ÷ pinion × 2.5. With the stock 78T spur, a 16T pinion gives an FDR of 12.19 and a 28T gives 6.96.
How many teeth is the stock spur gear on the Team Associated RC10 B74.2/D?
78 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 (74.2D - Dirt). Part numbers link to AMain.
- Front
- 30 wt
- Rear
- 30 wt
- Front
- 10,000 cst
- Center
- 200,000 cst
- Rear
- 10,000 cst
What shock oil does the Team Associated RC10 B74.2/D come with?
Out of the box the RC10 B74.2/D runs 30 wt front, 30 wt rear (Team Associated oil), on 2 x 1.6mm (#91936) front, 2 x 1.7mm (#91937) 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 B74.2/D come with?
The kit springs are 3.8lb Yellow (#91943) front, 2.2lb Blue (#91950) rear. Stiffer springs suit high grip and big jumps; softer springs add grip on slick or bumpy tracks.
What diff fluid does the Team Associated RC10 B74.2/D come with?
The kit diff fluid is 10,000 cst front, 200,000 cst center, 10,000 cst rear. Thicker front adds steering on power; thicker center sends more drive rearward; thicker rear stabilizes the car under throttle.
Setup Help
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Setup App & Race Log
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