Originally Posted by
fietsbob
there is some cost advantage to Buying a new crank with the same Bolt pattern as the one on your Bike , using the chainrings , then re selling the New crankarms ..
Originally Posted by
wroomwroomoops
To the OP: I am not quite sure why is octalink even relevant to your question. Just get a suitable BCD 104 chainring
Shimano uses many different thicknesses, and thickess determines where the teeth lie in relation to the upper and lower rings.
Sorry for the triple quote, but it's a pretty good summary. I might get the square taper 8 sp M361, pull the chainrings and put the matched set on my existing Octalink cranks. Assuming the spiders are the same. Then sell the cranks, or save them for when I do replace the BB, or just get bored with them sitting around.
Square taper M361 seems to be on sale for about $25, and the best price I can find for Octalink is $42. (roughly) Gee, what could go wrong? I either loose any cost advantage with lost shipping / return charges or have to order a square taper BB. Oh, wait. I could try to sell or trade the new Octalink crank arms. Forgot about that.
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