VehiclesKyosho Ultima
Specifications
Last modified
| Spec | Value | Basis |
|---|---|---|
| Drivetrain | ||
| Pinion | 25TStock | Stock |
| Spur | 57TStock | Stock |
| Transmission & axle | 3.79:1Stock | Stock |
| Spur ÷ pinion | 2.280:1Calculated | Calculated |
| Final drive | 8.64:1Stock | Stock |
| Wheels & tires | ||
| Tire diameter | 82mmStock | Stock |
| Rollout | 29.8mm per motor turnCalculated | Calculated |
| Power | ||
| Motor | Not applicable | |
| Battery | Not applicable | |
| Performance | ||
| Theoretical top speed | Not applicable | |
| Vehicle | ||
| Part number | 30625 | |
| Scale | 1/10 | |
Stock is as the vehicle ships. Calculated is worked from the stock figures on this page rather than stored beside them, so the two cannot drift apart. Not applicable means the vehicle does not come with it, like the motor on a roller or the tires on a race kit, or does not have one, like a KV rating on a brushed motor.
How these numbers were settled
Reissue of the 1986 2WD buggy.
- Kyosho's Technical Data gives 'Gear Ratio: 8.64:1' and 'Tire(F/R): 75 x 20mm / 82 x 36mm'.
- Being 2WD, the driven diameter is the 82mm rear; the 75mm front is not driven.
- It is a kit: the 540-class motor, ESC, battery and charger are all required and not included, so KV and cell count do not apply.
- The manual's gear ratio chart prints 'Final Ratio / Standard 57T' with 25T at 8.64:1, so the ratio after the spur is 8.64 / (57/25) = 3.7895.
Sources
Every figure on this page traces to one of these. Where they disagreed, the note above says which was used and why.