Moving up to 180mm rotors to get some extra stopping power out of your XC or AM bike? This Shimano XTR disc brake adapter mounting bracket enables you to use 180mm rotors with 74mm Post Mount calipers on 51mm IS rear frame mounts. Go XTR and get the best over the rest.
180mm rotor size
74mm Post Mount caliper
51mm IS front fork mount
Rear Frame use only
Specifications
Frame/Fork Mount Type
51mm IS
Front/Rear
Rear
Rotor Size
180mm
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