Moto-Master : ( 038 )Steel Ultralight sprocket Yamaha: YZ125/250/490 <-1999 (520)
Steel Rear Sprocket
The Moto-Master Steel Rear Sprocket is a long-lasting sprocket that lasts up to 3 times longer than an aluminium sprocket.

- Top grade hardened steel, will outlast an aluminium sprocket up to 3 times._x0003_
- Special coating for extra durability.
- Race proven design offers optimal strength-to-weight ratio.
- CAD designed and laser cut using state of the art technology.
| Sprocket Teeth | 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52 |
| Sprocket Chain model | (520) Chain |
| Sprocket Inner Diameter | D 00 |
| Sprocket Pitch | P 0 |
| Numero di fori per bulloni dell'ingranaggio | H 6 |
| Marchio della bicicletta | Yamaha |
| 2-Brand-product | Moto-Master |
| Prodotto a colori | 2-Nero |