Ask Miles, our Setup AI that’s been trained on the YD-2SX.
Setups
Gearing
Stock gearing for the Yokomo YD-2SX, with common pinions and their ratios.
| Pinion | Spur ÷ pinion | FDR |
|---|---|---|
| 17T | 4.94 | 12.85 |
| 18T | 4.67 | 12.13 |
| 19T | 4.42 | 11.49 |
| 20T | 4.20 | 10.92 |
| 21T | 4.00 | 10.40 |
| 22T | 3.82 | 9.93 |
| 23T | 3.65 | 9.50 |
| 24T | 3.50 | 9.10 |
| 25T | 3.36 | 8.74 |
| 26T | 3.23 | 8.40 |
| 27T | 3.11 | 8.09 |
| 28T | 3.00 | 7.80 |
Shaded rows are the pinions most 1/10 2WD touring/gt setups run on the stock spur.
What pinion should I run?
Tell us your motor and track and get a starting pinion for the Yokomo YD-2SX, with the range racers in the class run.
Get a recommendation →Shop pinion gears at AMain →What pinion gear should I use on the Yokomo YD-2SX?
It depends on your motor and the track. In the 1/10 2WD touring/gt class, racers gear by final drive ratio: 13.5T near 9.80. On the YD-2SX's stock 84T spur that is about 22T 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 YD-2SX selected.
What is the internal ratio (transmission ratio) of the Yokomo YD-2SX?
The YD-2SX has an internal ratio of 2.6:1. Final drive ratio = spur ÷ pinion × 2.6. With the stock 84T spur, a 17T pinion gives an FDR of 12.85 and a 28T gives 7.80.
How many teeth is the stock spur gear on the Yokomo YD-2SX?
84 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
- 300 cst
- Rear
- 200 cst
- Front
- 4-hole
- Rear
- 4-hole
What shock oil does the Yokomo YD-2SX come with?
Out of the box the YD-2SX runs 300 cst front, 200 cst rear, on 4-hole front, 4-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 Yokomo YD-2SX come with?
The kit springs are Turn - Green (#D-170G) front, Turn - Pink (#D-170P) rear. Stiffer springs suit high grip and big jumps; softer springs add grip on slick or bumpy tracks.
Setup Help
All Drift Cars →
Free to start · iOS & Android
Setup App & Race Log
Your Yokomo YD-2SX is in the RC Setup App
Save every setup change you make to your Yokomo YD-2SX, get AI tuning answers for that exact car, and log your races — at the track or back in the pits.
- Setup Tracking
- AI Mechanic answers
- Find & Share Setups
- Race Log
- Gear Ratio Calculator
- Free to use
