Quote:
Originally Posted by RyanCahoon
Perhaps to use different combinations of gears?
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I get that, but how is it implemented? That's actually more my question, as it really depends on the implementation.
Also, you can still use different gears with a fixed center distance. For example, if you have a 12t to 60t gearset, you can replace it with a 24t to 48t gearset without changing the center distance.