VehiclesTraxxas Jato 4X4 VXL-4s
Specifications
Last modified
| Spec | Value | Basis |
|---|---|---|
| Drivetrain | ||
| Pinion | 14TStock | Stock |
| Spur | 50TStock | Stock |
| Transmission & axle | 2.84:1Stock | Stock |
| Final drive | 10.16:1Stock | Stock |
| Wheels & tires | ||
| Tire diameter | Not published | |
| Wheel hex | 17 mmStock | Stock |
| Power | ||
| Motor | 2400KVStock | Stock |
| Motor shaft | 5 mmStock | Stock |
| Battery | Up to 4SLiPoStock | Stock |
| Stock motor | Velineon 540XL 2400KvStock | Stock |
| Stock ESC | Velineon VXL-4sStock | Stock |
| Battery connector | Traxxas High-CurrentStock | Stock |
| Battery space | 165 × 50 × 35 mmmax pack, L × W × HStock | Stock |
| Performance | ||
| Theoretical top speed | Not published | |
| Chassis | ||
| Weight | 2.54 kg (5.6 lb)Stock | Stock |
| Length | 517 mm20.4 inStock | Stock |
| Width | 305 mm12 inStock | Stock |
| Height | 179 mm7 inStock | Stock |
| Wheelbase | 320 mm12.6 inStock | Stock |
| Diff oil, front | 30KStock | Stock |
| Shock oil, front | 50 wtStock | Stock |
| Shock oil, rear | 60 wtStock | Stock |
| Vehicle | ||
| Part number | 90386-4 | |
| Scale | 1/8 | |
| Class | Buggy | |
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 published means it exists but no source we could find prints it.
Gearing parts
| Component | Teeth | Pitch | Bore | Part number |
|---|---|---|---|---|
| Fitted at the factory | ||||
| Pinion | 14T | Not published | 5 mm | 5640 (opens in a new tab) |
| Spur | 50T | 32P | Not applicable | 6842X (opens in a new tab) |
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 (5 mm on the stock motor). Linked part numbers go to the maker's or official distributor's page for that part.
How these numbers were settled
The product page prints 'Overall Drive Ratio: 10.16:1', and the owner's manual gear chart (p. 28) marks the 14T pinion on the 50T spur, 10.16:1, as the out-of-box setup, with the formula spur divided by pinion times 2.84.
- The parts list sets the 14T pinion (5640) and the 50T steel spur (6842X) in regular type, and both part pages list the Jato 4X4 VXL-4s as a stock fitment.
- The 60+ mph figure on the product page needs the optional large pinion gears sold separately, which the manual's chart marks as 60+ mph gearing, so no stock claim is listed.
- Traxxas describes the stock Response Pro tires only by their 3.0-inch wheel, so the tire diameter is left blank and no no-load speed is worked out.
- The VXL-4s ESC takes a 2S to 4S LiPo.
- The Torque Biasing Center Drive is filled with 20 million weight oil and the front differential with SAE 30,000W; the rear differential is packed with grease.
Documents
- ManualOwner's manual, 90386-4, R01 (Traxxas PDF) (opens in a new tab)Gearing p. 28
- Gearing chartGearing compatibility chart (in the owner's manual) (opens in a new tab)p. 28
- Parts listParts list, 90386-4 (Traxxas PDF) (opens in a new tab)Spur gears & pinion gears
- Exploded viewExploded view, transmission assembly (Traxxas JPG) (opens in a new tab)
Sources
- jato-4x4-vxl-4s-90386-4traxxas.com (opens in a new tab)
- Manual (PDF)traxxas.com (opens in a new tab)
- Manual (PDF)traxxas.com (opens in a new tab)
- 90386-4_Jato%204X4%20Brushl…traxxas.com (opens in a new tab)
- 5640-14-tooth-pinion-gear-3…traxxas.com (opens in a new tab)
- 6842x-50-tooth-steel-center…traxxas.com (opens in a new tab)
- 9086-17-mm-blue-aluminum-sp…traxxas.com (opens in a new tab)
- 9074-wht-30-white-dished-wh…traxxas.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.