Motorcycle Sprocket Size/Ratio Calculator
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Aprilia RS 250 (1995-2004)
| Front | Rear | Chain | Links | |
| Aprilia RS 250 (1995-2004) | 14 | 42 | 520 | 110 |
Select current size of front and rear sprockets
as well as the new sizes.
as well as the new sizes.
| Front | Rear | Ratio | Torque | Speed |
| 14T | 40T | 2.86 | -5.0% | +5.0% |
| 14T | 41T | 2.93 | -2.4% | +2.4% |
| 14T | 42T | 3.00 | ||
| 14T | 43T | 3.07 | +2.3% | -2.3% |
| 14T | 44T | 3.14 | +4.5% | -4.5% |
| 14T | 45T | 3.21 | +6.7% | -6.7% |
| 14T | 46T | 3.29 | +8.7% | -8.7% |
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