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Which Disc Brake Adapter

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Which Disc Brake Adapter

Old 11-13-21, 11:40 AM
  #1  
Paul Barnard
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Which Disc Brake Adapter

Pictured is my front fork. I ordered a TRP Spyke long pull brake 180mm rotor combo. Which adapter will I need for the pictured fork? Since I am kinda dense, a link to what I need rather than a verbal description would be awesome. I have searched high and low, and I have no idea what to get.

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Old 11-13-21, 03:34 PM
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Your fork appears to use a "flat mount" caliper and the Spyke (now discontinued it seems) used a post mount so your fork is incompatible with them. Also, flat mounts are limited to 160mm rotors so your 180mm rotors won't work either.

Adapters for flat mount brakes like the TRP Spyre are readily available and shown on the TRP web site.
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Old 11-14-21, 01:34 AM
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It probably isn't recommended to use a 180mm rotor on that fork.

If you really wanted to do it, you could attach a P20 (160 to 180mm) post mount to post mount adapter onto the 160mm flat mount to post mount adapter.

FM to PM: https://trpcycling.com/product/flat-...mount-adapter/

PM to PM: https://trpcycling.com/product/new-p...otor-adapters/
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Old 11-14-21, 05:54 AM
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Paul Barnard
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Originally Posted by cobba View Post
It probably isn't recommended to use a 180mm rotor on that fork.

If you really wanted to do it, you could attach a P20 (160 to 180mm) post mount to post mount adapter onto the 160mm flat mount to post mount adapter.

FM to PM: https://trpcycling.com/product/flat-...mount-adapter/

PM to PM: https://trpcycling.com/product/new-p...otor-adapters/

The back and front brakes run the same TRP caliper. The rear rotor is 160. Could I order a 160 rotor and run it with that 160 flat to post adapter?
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Old 11-15-21, 07:58 AM
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Originally Posted by Paul Barnard View Post
The back and front brakes run the same TRP caliper. The rear rotor is 160. Could I order a 160 rotor and run it with that 160 flat to post adapter?
Yes. You need to make sure you order a front specific adapter, since the bolt hole spacing is different for front and rear flat mount.
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Old 11-15-21, 09:52 AM
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Paul Barnard
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Originally Posted by dsaul View Post
Yes. You need to make sure you order a front specific adapter, since the bolt hole spacing is different for front and rear flat mount.
Thank you. I really appreciate you helping me figure this out.
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Old 11-18-21, 03:24 PM
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Paul Barnard
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Originally Posted by dsaul View Post
Yes. You need to make sure you order a front specific adapter, since the bolt hole spacing is different for front and rear flat mount.
Just wanted to come back and say thanks again. The parts arrived today and bolted up perfectly.
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