Online Catalogue
Kawasaki EX250R J8F,J9F,JAF,JBF,JBFA,JCF,JCFA Ninja 250 R — USA
2008 to 2012
Front Sprocket
Rear Sprocket
Drive Chain
Pitch: 520
Length: 106
Please note that the chain shown in this listing is for size reference only. For the correct chain type and grade, please refer to the vehicle's manufacturer manual.
Gear Ratio Chart
| Teeth | Front Sprocket | ||
| 14 | 15 | ||
| Rear Sprocket | 45 | 3.21 standard | 3.00 -6.7% |
Lower gear ratios allow for higher top speeds.
Higher gear ratios increase torque for better acceleration.