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Stock gearing for the Traxxas Drag Slash, with common pinions and their ratios.
| Pinion | Spur ÷ pinion | FDR |
|---|---|---|
| 15T | 5.07 | 13.78 |
| 16T | 4.75 | 12.92 |
| 17T | 4.47 | 12.16 |
| 18T | 4.22 | 11.48 |
| 19T | 4.00 | 10.88 |
| 20T | 3.80 | 10.34 |
| 21T | 3.62 | 9.84 |
| 22T | 3.45 | 9.40 |
| 23T | 3.30 | 8.99 |
| 24T | 3.17 | 8.61 |
| 25T | 3.04 | 8.27 |
| 26T | 2.92 | 7.95 |
| 27T | 2.81 | 7.66 |
| 28T | 2.71 | 7.38 |
| 29T | 2.62 | 7.13 |
| 30T | 2.53 | 6.89 |
| 31T | 2.45 | 6.67 |
| 32T | 2.38 | 6.46 |
| 33T | 2.30 | 6.26 |
| 34T | 2.24 | 6.08 |
| 35T | 2.17 | 5.91 |
What pinion should I run?
Tell us your motor and track and get a starting pinion for the Traxxas Drag Slash, with the range racers in the class run.
Get a recommendation →Shop pinion gears at AMain →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 Drag Slash 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.
The Drag Slash has an internal ratio of 2.72:1. Final drive ratio = spur ÷ pinion × 2.72. With the stock 76T spur, a 15T pinion gives an FDR of 13.78 and a 35T gives 5.91.
76 teeth. Changing the spur moves every pinion's ratio at once; most racers leave the spur and tune with the pinion.
Kit shock setup. Part numbers link to AMain.
Out of the box the Drag Slash runs 20 wt front, 60 wt rear (Traxxas oil), on 2-hole front, 2-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.
The kit springs are Kit (#TRA2458) front, Progressive Blue rear. Stiffer springs suit high grip and big jumps; softer springs add grip on slick or bumpy tracks.
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Your Traxxas Drag Slash is in the RC Setup App
Save every setup change you make to your Traxxas Drag Slash, get AI tuning answers for that exact car, and log your races — at the track or back in the pits.

