VehiclesFMS FCX18 Chevrolet K10
FMS FCX18 Chevrolet K10
1/18 scale · scale crawler · FMS11851RTR
- Final drive
- 24.75:1
- Tire
- 66mm
Specifications
Last modified
| Spec | Value | Basis |
|---|---|---|
| Drivetrain | ||
| Pinion | Not published | |
| Spur | Not published | |
| Transmission & axle | Not published | |
| Final drive | 24.75:1Stock | Stock |
| Wheels & tires | ||
| Tire diameter | 66mmStock | Stock |
| Rollout | 8.4mm per motor turnCalculated | Calculated |
| Power | ||
| Motor | Not applicable | |
| Motor shaft | Not published | |
| Battery | Up to 2SLiPoStock | Stock |
| Performance | ||
| Theoretical top speed | Not applicable | |
| Vehicle | ||
| Part number | FMS11851RTR | |
| Scale | 1/18 | |
| 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. 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. 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 | Not published | Not published | Not published | C3030 (opens in a new tab) |
| Spur | Not published | Not recorded | Not applicable | Not recorded |
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. Linked part numbers go to the maker's or official distributor's page for that part.
How these numbers were settled
FMS's manual (MAN-G0250) states the two-speed gearbox's 'high gear reduction ratio is 24.75' and its low gear 99, as whole motor-to-wheel reductions; the high gear is used here and 99 is the crawl ratio.
- The same manual's specification page prints the tire as 'Φ 66*22mm'.
- The motor is a 180-size brushed can, so there is no KV.
- The receiver and ESC unit is rated 'NiMH (5~7 Cell) / 2S LiPo' at 10A continuous, and the truck ships with a 2S 7.4V 900mAh pack.
- The parts list names the pinion (C3030) and the transmission gears but prints no tooth counts, so the pinion, the spur and the ratio after it are left blank.
- The later FCX18S K10 S V2 (FMS11851RTRYLV2S) prints the same 24.75 and 99 reductions and the same 180 motor in its own manual, but does not restate the tire size.
Documents
- ManualInstruction manual, FCX18 K10 (FMS PDF) (opens in a new tab)Specification PDF p. 9
- Parts listSpare parts list, FCX18 K10 (in FMS manual PDF) (opens in a new tab)Pinion gear C3030, PDF p. 28
- Exploded viewExploded view, two-speed transmission (in FMS manual PDF) (opens in a new tab)PDF p. 31
Sources
- Manual (PDF)cdn-files.myshopline.com (opens in a new tab)
- 17363-fms11851rtr-rd-FMS118…beez2b.com (opens in a new tab)
- fms-1-18-fcx18-chevrolet-k1…fmshobby.com (opens in a new tab)
- Manual (PDF)cdn-files.myshopline.com (opens in a new tab)
- 1-24-monster-truck-pinion-g…fmshobby.com (opens in a new tab)
- fcx18-motor-setfmshobby.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.