Brake Adapters

3 brake adapters with verified specifications and live pricing. Each entry lists the frame / fork mount and rotor size recorded by the manufacturer, so you can check fitment before you buy.

ComponentFrame / fork mountRotor sizeFrom
Shimano SM-MA-F160P/S AdapterIS fork to post-mount caliper, 160mm front51mm IS FrontFront 160—
Shimano SM-MA-F180P/P2 AdapterPost-mount to post-mount +20mm (160→180mm), front or rearPost Mount160 Post | 180 Rotor—
Shimano SM-MA-R160P/S AdapterIS frame to post-mount caliper, 160mm rear51mm IS RearRear 160—

Fitment values come from each component's recorded manufacturer specification. A dash means the value is not recorded for that part, not that it fits everything — check the individual component page.

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