Setups
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Gearing
Stock gearing for the Rovan RC Baja 5B, with common pinions and their ratios.
| Pinion | Spur ÷ pinion | FDR |
|---|---|---|
| 14T | 4.07 | 9.77 |
| 15T | 3.80 | 9.12 |
| 16T | 3.56 | 8.55 |
| 17T | 3.35 | 8.05 |
| 18T | 3.17 | 7.60 |
| 19T | 3.00 | 7.20 |
| 20T | 2.85 | 6.84 |
| 21T | 2.71 | 6.51 |
| 22T | 2.59 | 6.22 |
| 23T | 2.48 | 5.95 |
| 24T | 2.38 | 5.70 |
What pinion should I run?
Tell us your motor and track and get a starting pinion for the Rovan RC Baja 5B, with the range racers in the class run.
Get a recommendation →Shop pinion gears at AMain →What pinion gear should I use on the Rovan RC Baja 5B?
It depends on your motor and the track. A hotter motor (lower turns, higher KV) takes a smaller pinion; a tight track wants a lower gear than an open one. Start near the middle of the pinions the Baja 5B shipped with, run a few minutes, and check motor temperature before going up a tooth. The So Dialed Pinion Recommender gives a starting pinion for your motor where we have class data.
What is the internal ratio (transmission ratio) of the Rovan RC Baja 5B?
The Baja 5B has an internal ratio of 2.4:1. Final drive ratio = spur ÷ pinion × 2.4. With the stock 57T spur, a 14T pinion gives an FDR of 9.77 and a 24T gives 5.70.
How many teeth is the stock spur gear on the Rovan RC Baja 5B?
57 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 (HPI Manual). Part numbers link to AMain.
- Front
- 20 wt
- Rear
- 20 wt
- Front
- 13 coil Black
- Rear
- 17.5 coil Black
- Front
- 2-hole
- Rear
- 3-hole
What shock oil does the Rovan RC Baja 5B come with?
Out of the box the Baja 5B runs 20 wt front, 20 wt rear, on 2-hole front, 3-hole 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 Rovan RC Baja 5B come with?
The kit springs are 13 coil Black front, 17.5 coil Black 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
Your Rovan RC Baja 5B is in the RC Setup App
Save every setup change you make to your Rovan RC Baja 5B, get AI tuning answers for that exact car, and log your races — at the track or back in the pits.
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