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  1. keithdunlop

    A2Z AD-PMR disc brake adapter experience?

    I am building up an older Klein Attitude frame that has the 22mm Hayes chainstay disc mounts. I want to use disc breaks, and it appears that the only solution to using current 51mm IS disc calipers is the a2z AD-PMR adapter. This is a chainstay specific adapter, but I am aware that there are...