I have a new frame that accepts a 73mm bottom bracket. While I'm building this bike up I want to transfer some of the older components from my first bike to this one to save on costs for the time being.
I'm transferring a Shimano Acera crankset purchased about 10 years ago. The old bike had a 68mm bottom bracket so unfortunately the BB won't transfer over. I want to buy a bottom bracket that will fit into this new frame and still allow me to use my old crankset.
My question is: how do I determine what the second digit in the bottom bracket specs should be? It looks like I might have a choice of 73/110 or 73/113. BTW it's a mountain frame and the crankset has 3 chainrings up front.
Thanks for the help!
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Thread: 73mm x ??? bottom bracket