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Find the best selection at the best prices around. Famous brands like DID ERT and X-Ring chains as well as Primary Drive in O-Ring, X-Ring and standard chain.
DAVID in CO
The amount of friction from the x ring seals robbed the bike of maybe 10-15% of it's power just to turn the chain. I finally replaced it after several months and enjoyed an instant power boost. I thought it might break in, but it never did.Read All Reviews