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Selected Model:
Honda NSR50 S-K
1989 onwards
Front Sprocket: JTF 253.15
Rear Sprocket: JTR 216.45
Recommended Chain: : 420 / 116
Front sprocket available in: 12, 13, 14, 15, 16, 17 teeth
Rear sprocket available in: 36, 37, 38, 40, 41, 42, 43, 45, 47 teeth
Please click here for a gear ratio chart
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Very important: 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
| 12 | 13 | 14 | 15 | 16 | 17 | 47 | 3.92 | 3.62 | 3.36 | 3.13 | 2.94 | 2.76 | 45 | 3.75 | 3.46 | 3.21 | 3.00 | 2.81 | 2.65 | 43 | 3.58 | 3.31 | 3.07 | 2.87 | 2.69 | 2.53 | 42 | 3.50 | 3.23 | 3.00 | 2.80 | 2.63 | 2.47 | 41 | 3.42 | 3.15 | 2.93 | 2.73 | 2.56 | 2.41 | 40 | 3.33 | 3.08 | 2.86 | 2.67 | 2.50 | 2.35 | 38 | 3.17 | 2.92 | 2.71 | 2.53 | 2.38 | 2.24 | 37 | 3.08 | 2.85 | 2.64 | 2.47 | 2.31 | 2.18 | 36 | 3.00 | 2.77 | 2.57 | 2.40 | 2.25 | 2.12 |