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Old 03-06-08, 05:40 PM
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tmanAg08
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Originally Posted by Gyeswho
he meant a 144bcd. Basically chainring bolts have various bolt diameters. 144bcd is common for track chainrigs because they are usually the ones with 1/8 thick chainrings and these are very easy to find when you want to keep you drive chain at 1/8th. When you have a different bcd it is common that it is going to be 3/32nd thickness which is usually a road chainring.
This man explain better than I do:
http://sheldonbrown.com/fixed.html#chain
That's not what it means - the bolts aren't a different diameter, the bolt circle is.
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