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Shimano SM-MA Disc Brake MountĀ Adapters for mounting disc brake calipers onto a bike frame or fork.Ā These adapters enable the use of 160mm, 180mm or 203mm rotors on most Postmount or IS Mount frame/fork combinations.
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Forks with IS tabs:
160mm rotor use: SM-MA-F160P/S
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180mm rotor use: SM-MA-F180P/S
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203mm rotor use: SM-MA-F203P/S
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Frames with IS tabs:
160mm rotor use: SM-MA-R160P/S
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180mm rotor use: SM-MA-R180P/S
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203mm rotor use: SM-MA-R203P/S
Forks & Frames with 140mm Post mount:
160mm rotor use: SM-MA-F180P/P2
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Forks & Frames with 160mm Post mount:
160mm rotor use: NO ADAPTER
180mm rotor use: SM-MA-F180P/P2
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203mm rotor use: SM-MA-F203P/P
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Forks & Frames with 180mm Post mount:
180mm rotor use: NO ADAPTER
203mm rotor use: SM-MA-F203P/PM
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