turpe Bolt Circle Diameter. This is the diameter of a circle drawn that passes through all five chainring bolts and it is absolutely vital that these are the same on both your cranks and chainring. What cranks are you using?
turpe Bolt Circle Diameter.
This is the diameter of a circle drawn that passes through all five chainring bolts and it is absolutely vital that these are the same on both your cranks and chainring. What cranks are you using?
I think they are Sugino 75's.
@Vinz started
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I think they are Sugino 75's.