VehiclesLosi 8IGHT-X Super Lasernut 6S 4X4 RTR
Losi 8IGHT-X Super Lasernut 6S 4X4 RTR
1/6 scale · buggy · LOS04019
- Final drive
- 17.90:1

Specifications
Last modified
| Spec | Value | Basis |
|---|---|---|
| Drivetrain | ||
| Pinion | 12TStock | Stock |
| Spur | 50TStock | Stock |
| Transmission & axle | 4.30:1Stock | Stock |
| Final drive | 17.90:1Stock | Stock |
| Wheels & tires | ||
| Tire diameter | Not published | |
| Wheel hex | 17 mmStock | Stock |
| Power | ||
| Motor | 2050KVStock | Stock |
| Motor shaft | 5 mmStock | Stock |
| Battery | Up to 6SLiPoStock | Stock |
| Stock motor | Spektrum Firma 4074 2050Kv Brushless MotorStock | Stock |
| Stock ESC | Spektrum Firma 150A Smart V2 Waterproof ESCStock | Stock |
| Battery connector | IC5Stock | Stock |
| Battery space | 140 × 47 mmmax pack, length × widthStock | Stock |
| Performance | ||
| Theoretical top speed | Not published | |
| Advertised top speed | 50mphMaker's claim | Maker's claim |
| Chassis | ||
| Weight | 8.39 kg (18.5 lb)Stock | Stock |
| Length | 762 mm30 inStock | Stock |
| Width | 432 mm17 inStock | Stock |
| Wheelbase | 508 mm20 inStock | Stock |
| Diff oil, front | 15KStock | Stock |
| Diff oil, center | 200KStock | Stock |
| Diff oil, rear | 10KStock | Stock |
| Shock oil, front | 80 wtStock | Stock |
| Shock oil, rear | 80 wtStock | Stock |
| Vehicle | ||
| Part number | LOS04019 | |
| Scale | 1/6 | |
| 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 | 12T | Mod 1 | 5 mm | LOSA3572 (opens in a new tab) |
| Spur | 50T | Mod 1 | Not applicable | LOSA3555 (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 manual names the stock pinion as a Mod 1, 12-tooth, 5mm shaft pinion (LOSA3572), and its parts list names a 50T center diff spur (LOSA3555).
- Losi's spec table prints a 50T spur, an internal ratio of 4.30 and a gear ratio of 17.90, and 50/12 x 4.30 is 17.92, so the table and the manual agree.
- Losi does not publish the diameter of the stock tires (LOS45037).
- The Firma 150A ESC is rated 3S to 6S and runs on two 3S packs.
- The motor's own page lists 1900Kv in its spec table while its name, the vehicle page and the manual all say 2050Kv; 2050 is shown here.
Documents
- ManualOwner's manual (Horizon PDF) (opens in a new tab)Gearing p. 8; fluids p. 9; replacement parts p. 50-52
- Exploded viewExploded view (Horizon PDF) (opens in a new tab)
Sources
- LOS04019horizonhobby.com (opens in a new tab)
- Manual (PDF)production-na01-horizonhobby.demandware.net (opens in a new tab)
- LOSA3572horizonhobby.com (opens in a new tab)
- LOSA3555horizonhobby.com (opens in a new tab)
- SPMXSM1700horizonhobby.com (opens in a new tab)
- SPMXSE2150horizonhobby.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.