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Stock gearing for the Yokomo MD3.0, with common pinions and their ratios.
| Pinion | Spur ÷ pinion | FDR |
|---|---|---|
| 17T | 4.71 | 12.10 |
| 18T | 4.44 | 11.43 |
| 19T | 4.21 | 10.83 |
| 20T | 4.00 | 10.29 |
| 21T | 3.81 | 9.80 |
| 22T | 3.64 | 9.35 |
| 23T | 3.48 | 8.95 |
| 24T | 3.33 | 8.57 |
| 25T | 3.20 | 8.23 |
| 26T | 3.08 | 7.91 |
| 27T | 2.96 | 7.62 |
| 28T | 2.86 | 7.35 |
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 MD3.0, with the range racers in the class run.
Get a recommendation →Shop pinion gears at AMain →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 MD3.0's stock 80T spur that is about 21T 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 MD3.0 selected.
The MD3.0 has an internal ratio of 2.572:1. Final drive ratio = spur ÷ pinion × 2.572. With the stock 80T spur, a 17T pinion gives an FDR of 12.10 and a 28T gives 7.35.
80 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 MD3.0 runs 200 cst front, 200 cst rear, on 4x1.4mm (#Y2-S144A) front, 4x1.4mm (#Y2-S144A) 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 Comp 1.5x26.5mm (#D-184F) front, Prog 1.4x26.5mm (#D-182F) rear. Stiffer springs suit high grip and big jumps; softer springs add grip on slick or bumpy tracks.
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Your Yokomo MD3.0 is in the RC Setup App
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