Looking to throw a chainguide and bashring on my 08 Rockhopper 29er since I've already destroyed the big ring, but I'm struggling to find one that is compatible with my bottom bracket( Shimano BB-ES25 octalink spline). It looks like I need a new bottom bracket, and then most likely a new crankset to go with it. Am I correct to assume this, or is there some way to put one on with the stock setup? I would like to run the Blackspire Dewlie, or something similar that will function with the middle and inner chainring. Thanks in advance.
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