2008 - 2017
YAMAHA WR 250 R
Blue aluminum rear sprocket with 49 teeth
| MOOSE RACING
MOOSE RACING
Fits to:
YAMAHA WR 250 R [2008 - 2016]
YAMAHA WR 250 R [2008 - 2017]
2009 - 2020 YAMAHA WR 250 R
Transmision ratio:
| 12 | 13 | 14 | ||
| 38 | 3.17 -4.3% | 2.92 -11.6% | 2.71 -17.9% | |
| 39 | 3.25 -1.7% | 3.00 -9.3% | 2.79 -15.8% | |
| 40 | 3.33 +0.8% | 3.08 -7.0% | 2.86 -13.6% | |
| 41 | 3.42 +3.3% | 3.15 -4.7% | 2.93 -11.5% | |
| 42 | 3.50 +5.8% | 3.23 -2.3% | 3.00 -9.3% | |
| 43 | 3.58 +8.3% | 3.31 standard | 3.07 -7.1% | |
| 44 | 3.67 +10.9% | 3.38 +2.3% | 3.14 -5.0% | |
| 45 | 3.75 +13.4% | 3.46 +4.7% | 3.21 -2.8% | |
| 46 | 3.83 +15.9% | 3.54 +7.0% | 3.29 -0.7% | |
| 47 | 3.92 +18.4% | 3.62 +9.3% | 3.36 +1.5% | |
| 48 | 4.00 +20.9% | 3.69 +11.6% | 3.43 +3.7% | |
| 49 | 4.08 +23.4% | 3.77 +14.0% | 3.50 +5.8% | |
| 50 | 4.17 +26.0% | 3.85 +16.3% | 3.57 +8.0% | |
| 51 | 4.25 +28.5% | 3.92 +18.6% | 3.64 +10.1% | |
| 52 | 4.33 +31.0% | 4.00 +20.9% | 3.71 +12.3% | |
| 53 | 4.42 +33.5% | 4.08 +23.3% | 3.79 +14.5% | |
Specifications
| Manufacturer | MOOSE RACING |
|---|---|
| Type | Drive |
| Color | Blue |
| Material | Aluminum |
| Chain pitch | 520 |
| Position | Rear |
| Units | Each |
| Number of teeth | 49 |
Product description
The 7075 T651 aluminum we use for these sprockets receives an extra tempering which reduces distortion and provides optimal thickness vs. typically thinner 7075 T6 sprockets 100% machined, no stamping or grinding Optimal tooth thickness results in maximum tooth and chain contact