Shimano Post Frame Or Fork To Post Caliper Brake Mount

20 Reviews
RRP: $20.00 - $25.00
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Post to post brake mounts allow you to run your brakes with a different sized rotor. The model you need depends on what size post mounts your fork/frame has, and what size rotor you want to run.

Ultimate adaptors are XTR level and use a lighter alloy with more cutouts to save a couple of grams in weight.

F 160-180mm - R 140-160mm 160-180mm:

  • +20mm increase
  • Allows for 180mm rotors on 160mm post mounts.

F 180-203mm - R 180-203mm:

  • +23mm increase
  • Allows for a 203mm rotor on 180mm post mounts.

F 160-203mm - R 160-203mm:

  • +43mm increase
  • Allows for a 203mm rotor on 160mm post mounts.
  • Fits via 4 bolts with the caliper offset

F 203-220mm: SM-MAF220P/PL

  • +17mm increase
  • Allows for a 220mm rotor on 203mm post mounts.

F 200-220mm: SM-MAF220P/PL2

  • +20mm increase
  • Allows for a 220mm rotor on 200mm post mounts.

Not sure how to decide which adaptor you need? Check out our blog post on How To Choose The Right Brake Mount.

If there is an adaptor, but it bolts to the frame from the side, then it's an IS mount, and you'll need a different adaptor.

For IS mount frames, Click Here

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Brake Mount Size
Option
Price
Add To Wishlist
F 160-180mm - R 140-160mm 160-180mm
MA Advanced Level
$‎20.00 $‎17.95
F 160-180mm - R 140-160mm 160-180mm
MA90 Ultimate Level
$‎25.00 $‎22.95
F 160-203mm - R 160-203mm
MA Advanced Level
$‎20.00 $‎17.95
F 180-203mm - R 180-203mm
MA Advanced Level
$‎20.00 $‎17.95
F 180-203mm - R 180-203mm
MA90 Ultimate Level
$‎25.00 $‎22.95
F 200-220mm
MA Advanced Level
$‎20.00 $‎17.95
F 203-220mm
MA Advanced Level
$‎20.00 $‎17.95
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Reviews

4.8

Easy to install

by

Easy to install, I've upgraded a number of bikes using these adapters. Just read carefully to ensure you get the right one.

Good quality as expected from

by -

Good quality as expected from shimano and perfect fit with plenty of adjustability with the supplied washers and bolts.

Nicelly made although careful not

by -

Nicelly made although careful not to overtighten the bolts as they are quite a soft alloy and strip easily. Also works for adapting 140mm rear post mount to 160mm (what I'm using it for).

What can I say? It

by -

What can I say? It does the job perfectly!

180mm to 203mm brake rotor adapter

by -

No issues fitted straight on fast delivery
Mine was used on frame on the rear

203 rotor adapter

by -

Seems fine, does what it's supposed to. Seems better finished than the SRAM adapters.

Ratings & Reviews

20 reviews

  • 3 stars
  • 0 reviews
  • 2 stars
  • 0 reviews
  • 1 star
  • 0 reviews

Easy to install

by

Easy to install, I've upgraded a number of bikes using these adapters. Just read carefully to ensure you get the right one.

Good quality as expected from

by -

Good quality as expected from shimano and perfect fit with plenty of adjustability with the supplied washers and bolts.

Nicelly made although careful not

by -

Nicelly made although careful not to overtighten the bolts as they are quite a soft alloy and strip easily. Also works for adapting 140mm rear post mount to 160mm (what I'm using it for).

What can I say? It

by -

What can I say? It does the job perfectly!

180mm to 203mm brake rotor adapter

by -

No issues fitted straight on fast delivery
Mine was used on frame on the rear

203 rotor adapter

by -

Seems fine, does what it's supposed to. Seems better finished than the SRAM adapters.

Specifications

ItemBarcode
Shimano Post Frame Or Fork To Post Caliper Brake MountSHMPTPBRKMNT
F 160-180mm - R 140-160mm 160-180mm - MA Advanced Level4524667295846
F 160-180mm - R 140-160mm 160-180mm - MA90 Ultimate Level4524667595571
F 160-203mm - R 160-203mm - MA Advanced Level4524667108115
F 180-203mm - R 180-203mm - MA Advanced Level4524667887416
F 180-203mm - R 180-203mm - MA90 Ultimate Level4524667887430
F 200-220mm - MA Advanced Level4550170897819
F 203-220mm - MA Advanced Level4550170897789

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