Online Catalogue
Triumph TF250 C
2026
Front Sprocket
OE Type Rubber Cushioned Front Sprocket
Rear Sprocket
Steel Rear Sprocket
Lightweight Self-Cleaning Rear Sprocket
Heat-Induction Hardened Zinc Black Rear Sprocket
Racelite Aluminium Rear Race 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 | ||
| 13 | 14 | ||
| Rear Sprocket | 40 | 3.08 -16.7% | 2.86 -22.6% |
| 42 | 3.23 -12.5% | 3.00 -18.8% | |
| 43 | 3.31 -10.4% | 3.07 -16.8% | |
| 45 | 3.46 -6.2% | 3.21 -12.9% | |
| 46 | 3.54 -4.2% | 3.29 -11.0% | |
| 47 | 3.62 -2.1% | 3.36 -9.1% | |
| 48 | 3.69 standard | 3.43 -7.1% | |
| 49 | 3.77 +2.1% | 3.50 -5.2% | |
| 50 | 3.85 +4.2% | 3.57 -3.3% | |
| 51 | 3.92 +6.2% | 3.64 -1.3% | |
| 52 | 4.00 +8.3% | 3.71 +0.6% | |
Lower gear ratios allow for higher top speeds.
Higher gear ratios increase torque for better acceleration.