2000 - 2006
DERBI GPR 50
Front sprocket
| JT Sprockets
Fits to:
DERBI GPR 50 '00-'06 [2000 - 2006]
2003 - 2016 DERBI GPR 50
Transmision ratio:
| 12 | 13 | 14 | 15 | ||
| 52 | 4.33 -1.9% | 4.00 -9.4% | 3.71 -15.9% | 3.47 -21.5% | |
| 53 | 4.42 standard | 4.08 -7.7% | 3.79 -14.3% | 3.53 -20.0% | |
| 59 | 4.92 +11.3% | 4.54 +2.8% | 4.21 -4.6% | 3.93 -10.9% | |
| 65 | 5.42 +22.6% | 5.00 +13.2% | 4.64 +5.1% | 4.33 -1.9% | |
Specifications
| Manufacturer | JT Sprockets |
|---|---|
| Chain pitch | 420 |
| Number of teeth | 12 |