Thread: Old Shimano compatibility with new Shimano?
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Old 04-03-20, 10:43 AM
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curbtender
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Originally Posted by MatthewBaynham
So with the old one spindle length is 115mm. (Shimano FC-A300)

And the new one has a spindle length of 110mm.

Is there going to be major problems?

I am assuming this means my feet will just be 5mm closer together and the chainrings will be 2.5mm closer to frame.

Is it still going to work?
That would push your chain line too far out. I think you would appreciate a new BB on a 25 year old drivetrain.
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