Singlespeed & Fixed Gear - how do you measure the bolt pattern for chainrings?
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03-03-06, 12:08 AM
03-03-06, 12:11 AM
measure adjacent holes center to center and multiply by 1.7
03-03-06, 12:12 AM
NM i found it on sheldon brown. this can drop. thanks!
03-03-06, 02:21 AM
For those wanting to know, the URL is:
BCD is the first item in this section. Has a very clear explanation on how to measure it for 4 and 5 bolt crank arms, as well as a table of common bcds and their uses so you can double check your calculation.
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