2001 - 2023
YAMAHA WR 250 F
Front sprocket
| ProX
Fits to:
YAMAHA WR250F [2001 - 2023]
2011 - 2014 YAMAHA WR 250 F
Transmision ratio:
| 12 | 13 | 14 | ||
| 38 | 3.17 -17.7% | 2.92 -24.0% | 2.71 -29.4% | |
| 46 | 3.83 -0.3% | 3.54 -8.0% | 3.29 -14.6% | |
| 47 | 3.92 +1.8% | 3.62 -6.0% | 3.36 -12.7% | |
| 48 | 4.00 +4.0% | 3.69 -4.0% | 3.43 -10.9% | |
| 49 | 4.08 +6.2% | 3.77 -2.0% | 3.50 -9.0% | |
| 50 | 4.17 +8.3% | 3.85 standard | 3.57 -7.1% | |
| 51 | 4.25 +10.5% | 3.92 +2.0% | 3.64 -5.3% | |
| 52 | 4.33 +12.7% | 4.00 +4.0% | 3.71 -3.4% | |
Specifications
| Manufacturer | ProX |
|---|---|
| Sprocket material | Steel |
Product description
The front sprockets are grooved and ultra-light and are the top level quality sprockets. Manufactured from low corrosion SCM435 Ni-Chrome Molybdenum steel, featuring a low carbon core to prevent breaking while the case hardened surface offers maximum wear resistance. Precision CNC machining ensure a perfect fit and the lightweight design including lightening holes offer ultimate performance. The sprockets also come with self-cleaning dirt grooves to extend chain and sprocket life to the max.