Can Anyone tell me how to measure a crank for Rings size ??

delboy009

Senior Retro Guru
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Can Anyone tell me how to measure a crank ????

I have no idea !! Or at least I have forgotten !! I bought a set of Race Face crank arms the other day from Ebay with what I thought was a standard 5 bolt fixing! I then orderd some Race Face rings in 5 stud in standard yet when I tried to fit them the holes were way too spaced apart !! Not even close !!

Anyone know what I need !! Or does anyone have some Black chainrings they want to sell me which would fit ! ! ! !

Cheers guys...
 
you measure between the holes where the big and middle ring fit .

standart is 110mm and compact ( microdrive ) is 94 mm .
 
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