Adapter for 160mm rear brake caliper?
07-28-22, 01:50 PM
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ignominious poltroon
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Adapter for 160mm rear brake caliper?
I have a frame with a direct mount for a flat-mount rear caliper positioned where it is compatible with a 140mm disc rotor, as pictured below. Is it possible to get an adaptor to position at the tip of the yellow arrow that would enable use of a 160mm rotor? My front (Shimano GRX) caliper comes with a mount for using a 160mm rotor with my fork. Would the same mount work, or does it differ for the rear caliper (which does not come with an adaptor).
07-28-22, 02:41 PM
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ignominious poltroon
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Found out what I need:Shimano SM-MA-R160D/D Disc Brake Adaptor
192790168562
Now if I can buy it anywhere but Amazon ...
192790168562
Now if I can buy it anywhere but Amazon ...
07-28-22, 04:09 PM
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07-28-22, 04:39 PM
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I have a frame with a direct mount for a flat-mount rear caliper positioned where it is compatible with a 140mm disc rotor, as pictured below. Is it possible to get an adaptor to position at the tip of the yellow arrow that would enable use of a 160mm rotor? My front (Shimano GRX) caliper comes with a mount for using a 160mm rotor with my fork. Would the same mount work, or does it differ for the rear caliper (which does not come with an adaptor).
07-28-22, 04:48 PM
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ignominious poltroon
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The adapter moves the caliper out (to the left) so there should be space.
Also, the frame manufacturer says it will work.
Also, the frame manufacturer says it will work.
Last edited by Polaris OBark; 07-28-22 at 04:52 PM.
