2007 - 2023
YAMAHA WR 250 F
Steel front sprocket
| JT Sprockets
Fits to:
YAMAHA WR250 F-L (Off Road Version) [2020 - 2020]
YAMAHA WR250 F-M,N (Off Road Version) [2021 - 2022]
YAMAHA WR250 F-F,G,H,J,K,L (Off Road Version) [2015 - 2020]
YAMAHA WR250 F-W,X,Y,Z (Off Road Version) [2007 - 2010]
YAMAHA WR250 F (Off Road Version) [2021 - 2023]
YAMAHA WR250 F-Z ,A,B,D,E (Off Road Version) [2010 - 2014]
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 | JT Sprockets |
|---|---|
| Material | Steel |
| Model | Yamaha |
| Position | Front |
| Type | Countershaft |
| Units | Each |
| Sprocket material | SCM420 Chromoly Steel Alloy |
| Chain pitch | 520 |
| Number of teeth | 12 |
| Sprocket material | SCM420 Chromoly Steel Alloy |
| Chain pitch | 520 |
| Number of teeth | 13 |
| Sprocket material | SCM420 Chromoly Steel Alloy |
| Chain pitch | 520 |
| Number of teeth | 14 |