Shimano Post Frame Or Fork To Post Caliper Brake Mount
Post to post brake mount to mount your caliper for a rotor size, dependent on what rotor you have, and what your fork/frame has as standard.
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
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
Customers Also Viewed
Reviews
Easy to install
by Aaron Markie
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 Ruksta -
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 Gerard -
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 humptydumpty -
What can I say? It does the job perfectly!
180mm to 203mm brake rotor adapter
by Troy B. -
No issues fitted straight on fast delivery
Mine was used on frame on the rear
203 rotor adapter
by Jim S. -
Seems fine, does what it's supposed to. Seems better finished than the SRAM adapters.
Ratings & Reviews
20 reviews
Easy to install
by Aaron Markie
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 Ruksta -
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 Gerard -
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 humptydumpty -
What can I say? It does the job perfectly!
180mm to 203mm brake rotor adapter
by Troy B. -
No issues fitted straight on fast delivery
Mine was used on frame on the rear
203 rotor adapter
by Jim S. -
Seems fine, does what it's supposed to. Seems better finished than the SRAM adapters.
Specifications
| Item | Barcode |
| Shimano Post Frame Or Fork To Post Caliper Brake Mount | SHMPTPBRKMNT |
| F 160-180mm - R 140-160mm 160-180mm - MA Advanced Level | 4524667295846 |
| F 160-180mm - R 140-160mm 160-180mm - MA90 Ultimate Level | 4524667595571 |
| F 160-203mm - R 160-203mm - MA Advanced Level | 4524667108115 |
| F 180-203mm - R 180-203mm - MA Advanced Level | 4524667887416 |
| F 180-203mm - R 180-203mm - MA90 Ultimate Level | 4524667887430 |