Online Catalogue
Yamaha DTR125 (DT125R)
1988 to 1989
Front Sprocket
OE Type Rubber Cushioned Front Sprocket
Rear Sprocket
Drive Chain
Pitch: 428
Length: 134
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 | ||
| 16 | 17 | ||
| Rear Sprocket | 55 | 3.44 +6.2% | 3.24 standard |
Lower gear ratios allow for higher top speeds.
Higher gear ratios increase torque for better acceleration.