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Shimano 180mm Disc Brake Adaptors

Item #: BR308C08
USD$4.99 SAVE 17% USD$5.99 msrp
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Shimano 180mm Disc Brake Adaptors

Shimano Front/Rear Disc brake adapters for use with 180 mm rotors.
Does not come with bolts
4.8 / 5.0
31 Reviews
5 Stars
4 Stars
3 Stars
2 Stars
1 Star
26
4
1
0
0
Simple adapter
Used this to upgrade my Hayes G2 caliper for 180 rotors. Works like a charm.

PROS: Priceweight

CONS: none
October 9, 2012
Location:
San Antonio
adapted like a charm
Works as described

PROS: Easy To Install
June 1, 2016
Location:
Packwood, WA
Make Sure You Know Your Mounting Style
Very Quick!!!

PROS: Lightweight, Easy To Install, Sturdy Design
September 8, 2016
Location:
Napa, CA
I would buy this product again and again. Satisfied
Changed my 160mm rotor to 180mm. Easy to install.

PROS: Easy To Install, Sturdy Design
August 29, 2016
Location:
Etowah, NC
worked as advertised
prompt delivery. arrived in good shape ready for installation!

PROS: Easy To Install, Lightweight

BEST USES: Mountain Biking, Upgrade, Casual Riding
January 12, 2016
Location:
Oklahoma
It works
It fits and work just fine

PROS: Easy To Install
April 13, 2016
Location:
Benton KY
Fits perfectly
The front and rear adapters fit perfectly. Used them to to upgrade brake system from juicy fives with 160mm rotors to Shimano m785 with 180mm rt-86 ice-tech rotors.

PROS: Lightweight, Easy To Install

BEST USES: Upgrade, Mountain Biking
March 21, 2016
Location:
Western CO
Shimano Disc Break Adapter
Easy to install. Works great!

PROS: Lightweight, Easy To Install
March 18, 2016
Location:
Rio Rancho, New Mexico
It works.
Fits like it should.

PROS: Easy To Install
May 5, 2016
Location:
NNY
It did it's job
Allowed me to easily install my post-mount rear brake caliper to the IS mounts on my frame (more accurately my dropouts)

PROS: Easy To Install
August 15, 2016
Location:
Georgia

Q & A

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Browse 2 questions Browse 2 questions and 5 answers
will this allow to go from 170mm to 180mm rotors ?
JAV on Oct 17, 2016
BEST ANSWER: I'm not sure.  I was going from 160mm to 180mm rotors and these worked perfectly.  I think it also depends on the year the original brakes were made.  My bike was a 2014 bike.
This says it doesn't come with bolts and I can't find the appropriate ones on the site (or at all). Any hints?
dpwrussell on Dec 17, 2016
BEST ANSWER: Hey Douglas,
I've linked to a few options that should work for you. These bolts are all standardized so brand doesn't really matter. What does matter is that you use M6 bolts (6mm diameter x 1mm threading) in whatever length you need for your frame and caliper. Generally that will be around 12mm for most frames/calipers.
Keep Pedaling!
Hayes Caliper Mounting Bolts Pack/10
Hayes Caliper Mounting Bolts Pack/10
Various Manufacturers Buttonhead Bolts
Various Manufacturers Buttonhead Bolts

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Free Shipping Offer

Get free Standard Shipping with your $50 purchase today! Just choose Standard Shipping during checkout.

Please note this offer is only available to physical shipping addresses in the 48 continental United States (no PO Boxes), and oversize charges still apply on some heavy/large items.