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Stock gearing for the XRAY X10 '22, with common pinions and their ratios.
| Pinion | Spur ÷ pinion | FDR |
|---|---|---|
| 15T | 6.40 | 6.40 |
| 16T | 6.00 | 6.00 |
| 17T | 5.65 | 5.65 |
| 18T | 5.33 | 5.33 |
| 19T | 5.05 | 5.05 |
| 20T | 4.80 | 4.80 |
| 21T | 4.57 | 4.57 |
| 22T | 4.36 | 4.36 |
| 23T | 4.17 | 4.17 |
| 24T | 4.00 | 4.00 |
| 25T | 3.84 | 3.84 |
| 26T | 3.69 | 3.69 |
| 27T | 3.56 | 3.56 |
| 28T | 3.43 | 3.43 |
| 29T | 3.31 | 3.31 |
| 30T | 3.20 | 3.20 |
| 31T | 3.10 | 3.10 |
| 32T | 3.00 | 3.00 |
| 33T | 2.91 | 2.91 |
| 34T | 2.82 | 2.82 |
| 35T | 2.74 | 2.74 |
What pinion should I run?
Tell us your motor and track and get a starting pinion for the XRAY X10 '22, 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 X10 '22 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 X10 '22 has an internal ratio of 1:1. Final drive ratio = spur ÷ pinion × 1. With the stock 96T spur, a 15T pinion gives an FDR of 6.40 and a 35T gives 2.74.
96 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 X10 '22 runs 700 cst center, 10,000 side tubes (XRAY oil). 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 1.8-2.0C Silver front, 1.8C Gold (#378093) center, 1.2C Black side. Stiffer springs suit high grip and big jumps; softer springs add grip on slick or bumpy tracks.
Free to start · iOS & Android
Your XRAY X10 '22 is in the RC Setup App
Save every setup change you make to your XRAY X10 '22, get AI tuning answers for that exact car, and log your races — at the track or back in the pits.

