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Gear ratio and conversion of the twist grip

Translation

A Gates CDX belt is used in the drivetrain. At the front, a FSA Gossamer, Gates Sprocket 60T and a pulley with 22 teeth at the rear. This results in the following drive data:

The table shows that the top speed of 45 km/h in the low gears of the Sturmey Archer gear system can only be achieved with unrealistic pedaling frequencies. Even in the highest gear, the Sturmey Archer still requires 8 rpm more than an ST3 / ST5 with chain, for example.

Conversion twist grip to double shift lever

If you are not happy with the twist shifter, you can also convert the gears to a double shifter. What you need to do this here.

Updated on July 21, 2025
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