Post Mount Disk Brake Adapter
Post Mount Disk Brake Adapter
Post Mount Disk Brake Adapter
Post Mount Disk Brake Adapter
Post Mount Disk Brake Adapter
Post Mount Disk Brake Adapter
Post Mount Disk Brake Adapter
Post Mount Disk Brake Adapter
Post Mount Disk Brake Adapter
Post Mount Disk Brake Adapter
Post Mount Disk Brake Adapter
Post Mount Disk Brake Adapter
Post Mount Disk Brake Adapter
Post Mount Disk Brake Adapter
Post Mount Disk Brake Adapter
Post Mount Disk Brake Adapter
Post Mount Disk Brake Adapter
Post Mount Disk Brake Adapter
Post Mount Disk Brake Adapter
Post Mount Disk Brake Adapter
Post Mount Disk Brake Adapter
Post Mount Disk Brake Adapter
Post Mount Disk Brake Adapter
Post Mount Disk Brake Adapter
Post Mount Disk Brake Adapter
Post Mount Disk Brake Adapter
Post Mount Disk Brake Adapter
Post Mount Disk Brake Adapter
Post Mount Disk Brake Adapter
Post Mount Disk Brake Adapter
Post Mount Disk Brake Adapter
Post Mount Disk Brake Adapter

Post Mount Disk Brake Adapter

Regular price $34.00

Now Available!

203mm  » 220mm Post Mount adapters (+17mm). These work with 220mm rotors on 2015–2020 Fox 40 and 49 forks with 203mm post mounts. 

Adaptors available for Shimano, SRAM, Hope, Hayes, Formula etc. rotors:

  • 180mm
  • 183mm
  • 185mm
  • 203mm 
  • 220mm

CNC machined from 6061 T651 aluminum. Machined surfaces allow for better caliper alignment and a more rigid brake set-up.

The Post Mount standard is universal to the front and rear brakes.

Some frames/forks use a 160mm rotor with no adapter, some use a 180mm with no adapter. Check your frame/fork! Our adapters can be used on both forks and frames with 160mm and 180mm posts. Bumping up from a 203mm post mount (2015–2020 Fox 40 and 49 forks) to a 220 or 223mm rotor is also covered by our adapters. 

Picking the Correct Adapter

  • To go from a 160mm post mount to 203mm rotor you will need a 43mm adapter.
  • To go from a 160mm post mount to 200mm rotor you will need a 40mm adapter.
  • To go from a 160mm post mount to 180mm rotor you will need a 20mm adapter and so on. 
  • For 2016+ Fox 36 and 180mm rear brake mounts: 
    • You will need the 23mm adapter to work with the 180mm post mount and a 203mm rotor.
  • Going from a 180mm post mount to a 200mm rotor requires the regular 20mm adapter.

If you are using Magura MT5 or MT7 calipers please contact us with your order number so we can provide you with a low profile bolt to ensure correct fitment.

The adapters do not come with mounting bolts.  Sets of 4 bolts are available HERE

Customer Reviews
5.0 Based on 48 Reviews
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Filter Reviews:
MC
07/29/2021
Matthew C.
Canada Canada
I recommend this product
Great service

NSB got me out of a bind. They had stock and shipped it overnight. Had my breakers set up in just over 24hrs ready for a bike trip! Good advice, quick service, awesome product.

CG
07/06/2021
Cody G.
Canada Canada
I recommend this product
Part works as intended

This spacer provided the exact offset needed to take my 180mm SRAM rotor to a 200mm Hope rotor on my Lyrik fork. Nicely made, and precise fit.

JI
07/03/2021
Joey I.
Canada Canada
I recommend this product
Nice adapter

I like this adapter better then the stock sram through adapter. It moves the brake into a better position on the rotor. Also it’s a lot more sturdy with the 4 bolt mount. I was getting rotor rub under hard cornering on my front wheel. This seemed to have stopped it, nic work as always NSB. Thanks

M
06/29/2021
Martin
Canada
I recommend this product
Brake adapter

I bought the 23mm version for rear wheel going from 180 to 203 on a SRAM guide RE. Great fit! Screws not included but anyway I prefer to use mine to be sure that there is a minimum of 10mm threading! Ship fast!

VL
06/15/2021
Vincent L.
Canada Canada
I recommend this product
No fuss

I installed it to upgrade my XT brakes from 180 to 203 mm. It took seconds to do the job and the brakes work fine. I am a satisfied customer. Just one wish: that the adapter came with a set of two screws in the package.