Online Catalogue
Honda CR85 RB-5,6,7 Expert >>> 428 Chain Conversion
2005 to 2007
Front Sprocket
Rear Sprocket
Racelite Aluminium Rear Race Sprocket
Drive Chain
Pitch: 428
Length: 124
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 | |
| 15 | ||
| Rear Sprocket | 49 | 3.27 -10.9% |
| 50 | 3.33 -9.1% | |
| 55 | 3.67 standard | |
| 56 | 3.73 +1.8% | |
Lower gear ratios allow for higher top speeds.
Higher gear ratios increase torque for better acceleration.