2004 - 2017
HONDA CRF 250 R
Steel front sprocket
| JT Sprockets
Fits to:
HONDA CRF250 R-4,5,6,7,8,9,A [2004 - 2010]
HONDA CRF250 R-A [2010 - 2010]
HONDA CRF250 R-B,C,D,E [2011 - 2014]
HONDA CRF250 R-F,G,H [2015 - 2017]
2014 - 2017 HONDA CRF 250 R
Transmision ratio:
| 12 | 13 | 14 | 15 | ||
| 38 | 3.17 -17.7% | 2.92 -24.0% | 2.71 -29.4% | 2.53 -34.1% | |
| 39 | 3.25 -15.5% | 3.00 -22.0% | 2.79 -27.6% | 2.60 -32.4% | |
| 40 | 3.33 -13.3% | 3.08 -20.0% | 2.86 -25.7% | 2.67 -30.7% | |
| 42 | 3.50 -9.0% | 3.23 -16.0% | 3.00 -22.0% | 2.80 -27.2% | |
| 43 | 3.58 -6.8% | 3.31 -14.0% | 3.07 -20.1% | 2.87 -25.5% | |
| 44 | 3.67 -4.7% | 3.38 -12.0% | 3.14 -18.3% | 2.93 -23.7% | |
| 45 | 3.75 -2.5% | 3.46 -10.0% | 3.21 -16.4% | 3.00 -22.0% | |
| 46 | 3.83 -0.3% | 3.54 -8.0% | 3.29 -14.6% | 3.07 -20.3% | |
| 47 | 3.92 +1.8% | 3.62 -6.0% | 3.36 -12.7% | 3.13 -18.5% | |
| 48 | 4.00 +4.0% | 3.69 -4.0% | 3.43 -10.9% | 3.20 -16.8% | |
| 49 | 4.08 +6.2% | 3.77 -2.0% | 3.50 -9.0% | 3.27 -15.1% | |
| 50 | 4.17 +8.3% | 3.85 standard | 3.57 -7.1% | 3.33 -13.3% | |
| 51 | 4.25 +10.5% | 3.92 +2.0% | 3.64 -5.3% | 3.40 -11.6% | |
| 52 | 4.33 +12.7% | 4.00 +4.0% | 3.71 -3.4% | 3.47 -9.9% | |
| 53 | 4.42 +14.8% | 4.08 +6.0% | 3.79 -1.6% | 3.53 -8.1% | |
| 54 | 4.50 +17.0% | 4.15 +8.0% | 3.86 +0.3% | 3.60 -6.4% | |
| 55 | 4.58 +19.2% | 4.23 +10.0% | 3.93 +2.1% | 3.67 -4.7% | |
Specifications
| Manufacturer | JT Sprockets |
|---|---|
| Material | Steel |
| Position | Front |
| Units | Each |
| Sprocket material | SCM420 Chromoly Steel Alloy |
| Chain pitch | 520 |
| Number of teeth | 12 |
| Type | Countershaft |
| Sprocket material | SCM420 Chromoly Steel Alloy |
| Chain pitch | 520 |
| Number of teeth | 13 |