Online Catalogue
KTM 250 Duke
2024 to 2026
Front Sprocket
Rear Sprocket
Heat-Induction Hardened Zinc Black Rear Sprocket
Drive Chain
Pitch: 520
Length: 118
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 | ||
| Rear Sprocket | 42 | 3.00 -2.3% |
| 43 | 3.07 standard | |
| 44 | 3.14 +2.3% | |
| 45 | 3.21 +4.7% | |
Lower gear ratios allow for higher top speeds.
Higher gear ratios increase torque for better acceleration.