If you're converting to Boost wheel spacing, you'll need to add a spacer to your rotors, so they'll meet the calipers in the right spot. If you're in such a predicament, have no fear! MRP makes it easy with their brake rotor spacer kit for Boost spacing. The kit includes a 5mm 6-bolt spacer and a set of 6 bolts.
Kit includes 5mm 6-bolt spacer and 6 rotor bolts
Forged aluminum built to withstand heat and abuse
Precision machined to give you smooth braking performance
Simple adapter that worked flawlessly. Only knock is that the longer bolts supplied with the adapter are silver and the bolts supplied with my Sram rotors were black. Functionally works great...aesthetically...I guess if having matching rotor bolts is a thing for you...keep this in mind.
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Easton M1 Bearing and Spacer Kit Replacement bearings
and spacer to improve bearing durability. Fits in M1-121, M1-221, and M1-321hubs. Does not fit M1-120 or M1-220 hubs. Cassette Type: No