VehiclesXRAY XT4'25
Specifications
Last modified
| Spec | Value | Basis |
|---|---|---|
| Drivetrain | ||
| Pinion | Not applicable | |
| Spur | 81TStock | Stock |
| Transmission & axle | 2.50:1Derived | Derived |
| Final drive | Not applicable | |
| Wheels & tires | ||
| Tire diameter | Not applicable | |
| Power | ||
| Motor | Not applicable | |
| Motor shaft | Not applicable | |
| Battery | Not applicable | |
| Performance | ||
| Theoretical top speed | Not applicable | |
| Vehicle | ||
| Part number | 360203 | |
| 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. 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.
Gearing parts
| Component | Teeth | Pitch | Bore | Part number |
|---|---|---|---|---|
| Fitted at the factory | ||||
| Spur | 81T | Not published | Not applicable | 364981 |
Tooth counts are the ones in the specifications above. Pitch is given as metric module (Mod 1, Mod 0.8) or diametral pitch (32P, 48P). They are different standards and are not interchangeable, even where the numbers look close. Bore is the pinion’s hole, listed separately from the motor shaft.
How these numbers were settled
4WD stadium truck kit with a centre diff carrying the 81T/48P spur (#364981), which the manual marks as included and the features page names as standard.
- The front and rear diffs use a 40T bevel gear (#364940) driven by a 16T drive gear (#365127), so the after-spur figure is worked out as 40/16 = 2.5, the same pair and ratio as the XB4.
- The manual's gearing chart prints 78 : X x 2.65 = FDR, which is the XT2's 2WD gearbox formula with its 78T spur and does not match this truck's own tooth counts, so the tooth-count figure is kept.
- Motor, pinion, speed controller and tires are not included.
Documents
- ManualInstruction manual, XT4'25 (XRAY PDF) (opens in a new tab)Centre diff spur PDF p. 8; gearing p. 42
- Exploded viewExploded view, XT4'25 (XRAY PDF) (opens in a new tab)
- Parts listSpare parts list, XT4'25 (XRAY PDF) (opens in a new tab)364981
Sources
- Manual (PDF)teamxray.com (opens in a new tab)
- enteamxray.com (opens in a new tab)
- p1580270amainhobbies.com (opens in a new tab)
- Manual (PDF)teamxray.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.