Ask Miles, our Setup AI that’s been trained on the MSX1.
Setups
Gearing
Stock gearing for the Mugen Seiki MSX1, with common pinions and their ratios.
| Pinion | Spur ÷ pinion | FDR |
|---|---|---|
| 16T | 4.88 | 12.19 |
| 17T | 4.59 | 11.47 |
| 18T | 4.33 | 10.83 |
| 19T | 4.11 | 10.26 |
| 20T | 3.90 | 9.75 |
| 21T | 3.71 | 9.29 |
| 22T | 3.55 | 8.86 |
| 23T | 3.39 | 8.48 |
| 24T | 3.25 | 8.13 |
| 25T | 3.12 | 7.80 |
| 26T | 3.00 | 7.50 |
| 27T | 2.89 | 7.22 |
| 28T | 2.79 | 6.96 |
Shaded rows are the pinions most 1/10 4WD buggy setups run on the stock spur.
What pinion should I run?
Tell us your motor and track and get a starting pinion for the Mugen Seiki MSX1, with the range racers in the class run.
Get a recommendation →Shop pinion gears at AMain → (opens in new tab)What pinion gear should I use on the Mugen Seiki MSX1?
It depends on your motor and the track. In the 1/10 4WD buggy class, racers gear by final drive ratio: 6T and below near 10.66, 7.5–8.5T near 10.00, 13.5T near 7.95. On the MSX1's stock 78T spur that is about 18T for 6T and below, 20T for 7.5–8.5T, 25T 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 MSX1 selected.
What is the internal ratio (transmission ratio) of the Mugen Seiki MSX1?
The MSX1 has an internal ratio of 2.5:1. Final drive ratio = spur ÷ pinion × 2.5. With the stock 78T spur, a 16T pinion gives an FDR of 12.19 and a 28T gives 6.96.
How many teeth is the stock spur gear on the Mugen Seiki MSX1?
78 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 (Dirt). Part numbers link to AMain.
- Front
- 350 cst
- Rear
- 350 cst
- Front
- 2.5mm 2 x 1.6mm #B2536/16 →
- Rear
- 2.5mm 2 x 1.8mm #B2536/18 →
What shock oil does the Mugen Seiki MSX1 come with?
Out of the box the MSX1 runs 350 cst front, 350 cst rear (Mugen Seiki oil), on 2.5mm 2 x 1.6mm (#B2536/16) front, 2.5mm 2 x 1.8mm (#B2536/18) 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 Mugen Seiki MSX1 come with?
The kit springs are 3lb 3-dot (#B2527) front, 1.8lb 2-dot (#B2530) rear. Stiffer springs suit high grip and big jumps; softer springs add grip on slick or bumpy tracks.
Setup Help
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RC Setup App
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