Ask Miles, our Setup AI that’s been trained on the XXX-T Family.
Stock gearing for the Team Losi XXX-T Family, with common pinions and their ratios.
| Pinion | Spur ÷ pinion | FDR |
|---|---|---|
| 16T | 5.50 | 13.37 |
| 17T | 5.18 | 12.58 |
| 18T | 4.89 | 11.88 |
| 19T | 4.63 | 11.25 |
| 20T | 4.40 | 10.69 |
| 21T | 4.19 | 10.18 |
| 22T | 4.00 | 9.72 |
| 23T | 3.83 | 9.30 |
| 24T | 3.67 | 8.91 |
| 25T | 3.52 | 8.55 |
| 26T | 3.38 | 8.22 |
| 27T | 3.26 | 7.92 |
| 28T | 3.14 | 7.64 |
| 29T | 3.03 | 7.37 |
| 30T | 2.93 | 7.13 |
Shaded rows are the pinions most 1/10 2WD truck 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 Losi XXX-T Family, with the range racers in the class run.
Get a recommendation →Shop pinion gears at AMain → (opens in new tab)It depends on your motor and the track. In the 1/10 2WD truck class, racers gear by final drive ratio: 7.5–8.5T near 10.14, 13.5T near 8.27. On the XXX-T Family's stock 88T spur that is about 21T for 7.5–8.5T, 26T 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 XXX-T Family selected.
The XXX-T Family has an internal ratio of 2.43:1. Final drive ratio = spur ÷ pinion × 2.43. With the stock 88T spur, a 16T pinion gives an FDR of 13.37 and a 30T gives 7.13.
88 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 XXX-T Family runs 30 wt front, 30 wt rear (Team Losi oil), on 3 x 1.3mm #55 Orange (#5047) front, 3 x 1.2mm #56 Red (#5046) 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 2” 2.5lb Red (#5128) front, 2.5” 2.3lb Pink (#5150) rear. Stiffer springs suit high grip and big jumps; softer springs add grip on slick or bumpy tracks.
Free to start · iOS & Android
Your Team Losi XXX-T Family is in the RC Setup App
Save every setup change you make to your Team Losi XXX-T Family, get AI tuning answers for that exact car, and log your races — at the track or back in the pits.

