Setups
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Gearing
Stock gearing for the Team Associated RC8 B4.2e, with common pinions and their ratios.
| Pinion | Spur ÷ pinion | FDR |
|---|---|---|
| 12T | 3.92 | 13.26 |
| 13T | 3.62 | 12.24 |
| 14T | 3.36 | 11.36 |
| 15T | 3.13 | 10.61 |
| 16T | 2.94 | 9.94 |
| 17T | 2.76 | 9.36 |
| 18T | 2.61 | 8.84 |
| 19T | 2.47 | 8.37 |
Shaded rows are the pinions most 1/8 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 RC8 B4.2e, 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 RC8 B4.2e?
It depends on your motor and the track. In the 1/8 4WD buggy class, racers gear by final drive ratio: 1800–2300 Kv near 10.06. On the RC8 B4.2e's stock 47T spur that is about 16T for 1800–2300 Kv. Tight tracks gear down, open tracks gear up. For a starting pinion matched to your motor, use the So Dialed Pinion Recommender with the RC8 B4.2e selected.
What is the internal ratio (transmission ratio) of the Team Associated RC8 B4.2e?
The RC8 B4.2e has an internal ratio of 3.385:1. Final drive ratio = spur ÷ pinion × 3.385. With the stock 47T spur, a 12T pinion gives an FDR of 13.26 and a 19T gives 8.37.
How many teeth is the stock spur gear on the Team Associated RC8 B4.2e?
47 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
- 40 wt
- Rear
- 35 wt
- Front
- 6x1.3mm flat
- Rear
- 6x1.4mm tapered #81597 →
What shock oil does the Team Associated RC8 B4.2e come with?
Out of the box the RC8 B4.2e runs 40 wt front, 35 wt rear (Team Associated oil), on 6x1.3mm flat front, 6x1.4mm tapered (#81597) 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 RC8 B4.2e come with?
The kit springs are 4.85lb Green (#81659) front, 3.6lb Green (#81663) rear. Stiffer springs suit high grip and big jumps; softer springs add grip on slick or bumpy tracks.
Setup Help
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Setup App & Race Log
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