VehiclesCross RC EMO X RTR
Cross RC
Cross RC EMO X RTR
1/8 scale · scale crawler
- Final drive
- 17.80:1
- Tire
- 136mm

Specifications
Last modified
| Spec | Value | Basis |
|---|---|---|
| Drivetrain | ||
| Pinion | 20TStock | Stock |
| Spur | 60TStock | Stock |
| Transmission & axle | 5.93:1Derived | Derived |
| Spur ÷ pinion | 3.000:1Calculated | Calculated |
| Final drive | 17.80:1Stock | Stock |
| Wheels & tires | ||
| Tire diameter | 136mmStock | Stock |
| Rollout | 24.0mm per motor turnCalculated | Calculated |
| Power | ||
| Motor | Not applicable | |
| Battery | Up to 4SLiPoStock | Stock |
| Performance | ||
| Theoretical top speed | Not applicable | |
| Vehicle | ||
| Scale | 1/8 | |
| Class | Scale crawler | |
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. Derived is worked out from gear tooth counts the maker publishes rather than printed as a ratio; the notes below say how. 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
Cross RC US lists a 20T pinion on a 60T spur and a final drive ratio of 17.8 in high gear and 38.9 in low gear from the two speed transmission; high gear is stored.
- The ratio after the spur is worked out as 17.8 x 20/60 = 5.93.
- The stock tires are Cross RC Talon 136X55 R2.2, a 136mm tall tire by its size code.
- The Hobbywing WP-880 brushed ESC is rated for 2-4S LiPo on Hobbywing's own page.
- The motor is a Cross RC 25T brushed motor, so there is no KV.
Sources
- emo-x-rtrcrossrc.us (opens in a new tab)
- quicrun-wp-880-dual-brushed…hobbywing.com (opens in a new tab)
Every figure on this page traces to one of these. Where they disagreed, the note above says which was used and why.