I have a Proflex 857, yes i know its old but still rides great.
I want to know what the largest chainring i can fit onto this bike.
And does any standard 4 bolt ring fit on it?
All original parts
Shimano Deore XT crank
Shimano Deore XT FD-M789
Also, kinda off topic but does anyone know what the seat post diameter is, just wanted to make sure I am measuring correctly.
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Thread: - Proflex 857 - Chainring help
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