Theoretical top speed for various front sprockets

sam2019

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This is a list I "borrowed" from the German RE forum. The values are measured using a Heidenau Tire with a real circumference of 1901 mm on a 17 inch wheel.

Obviously speeds beyond the 130kmh mark are unrealistic in real life with a stock engine so this list only applies to people who do a 477 upgrade and change their sprockets at the same time.

However you will trade a lot of fun (torque) at lower speeds if you do change to a 16 or 17 teeth sprocket.
 

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