Ask Miles, our Setup AI that’s been trained on the Ultima.
Setups
Gearing
Stock gearing for the Kyosho Ultima, with common pinions and their ratios.
| Pinion | Spur ÷ pinion | FDR |
|---|---|---|
| 18T | 3.17 | 12.00 |
| 19T | 3.00 | 11.37 |
| 20T | 2.85 | 10.80 |
| 21T | 2.71 | 10.29 |
| 22T | 2.59 | 9.82 |
| 23T | 2.48 | 9.39 |
| 24T | 2.38 | 9.00 |
| 25T | 2.28 | 8.64 |
| 26T | 2.19 | 8.31 |
| 27T | 2.11 | 8.00 |
| 28T | 2.04 | 7.72 |
| 29T | 1.97 | 7.45 |
| 30T | 1.90 | 7.20 |
| 31T | 1.84 | 6.97 |
| 32T | 1.78 | 6.75 |
Shaded rows are the pinions most 1/10 2WD 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 Kyosho Ultima, with the range racers in the class run.
Get a recommendation →Shop pinion gears at AMain →What pinion gear should I use on the Kyosho Ultima?
It depends on your motor and the track. In the 1/10 2WD buggy class, racers gear by final drive ratio: 6T and below near 9.40, 7.5–8.5T near 9.22, 17.5T near 6.48. On the Ultima's stock 57T spur that is about 23T for 6T and below, 23T for 7.5–8.5T, 33T for 17.5T. Tight tracks gear down, open tracks gear up. For a starting pinion matched to your motor, use the So Dialed Pinion Recommender with the Ultima selected.
What is the internal ratio (transmission ratio) of the Kyosho Ultima?
The Ultima has an internal ratio of 3.79:1. Final drive ratio = spur ÷ pinion × 3.79. With the stock 57T spur, a 18T pinion gives an FDR of 12.00 and a 32T gives 6.75.
How many teeth is the stock spur gear on the Kyosho Ultima?
57 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 (Re-release). Part numbers link to AMain.
- Front
- 200 cst
- Rear
- 200 cst
- Front
- Med - Black
- Rear
- Hard - Gold
- Front
- A
- Rear
- C
What shock oil does the Kyosho Ultima come with?
Out of the box the Ultima runs 200 cst front, 200 cst rear (Kyosho oil), on A front, C 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 Kyosho Ultima come with?
The kit springs are Med - Black front, Hard - Gold rear. Stiffer springs suit high grip and big jumps; softer springs add grip on slick or bumpy tracks.
Setup Help
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