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  • Hope Front IS to Post +20mm Brake Adaptor
  • Hope Front IS to Post +20mm Brake Adaptor
NOW$19.99
  • RRP$22.00
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Front or Rear +20mm
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Hope Front IS to Post Mount Adaptor

Features:

  • Hope mount adaptor to mount a 51mm international standard caliper (i.e. Hope, Formula, etc) to a 74mm post mount fork (i.e. Manitou) with a 20mm increase in disc size.
  • Please Note: Unfortunately not compatible with new Marzocchi Post Mounts

Buy Hope Components from Chain Reaction Cycles, the World's Largest Online Bike Store.

  • Colour: Silver
  • Size: Front or Rear +20mm
 
Rated 4.2 out of 5 by 25 reviewers.
Rated 5 out of 5 by IS Caliper to Post fork , Post fork to IS Caliper IS Caliper to Post fork +20mm Adaptor AKA Post mount fork to IS Caliper +20mm Adaptor after switching from a old manitou skareb running a 180 rotor to a set of rockshock rebas with 180 rotor my brakes would not work it turned the old Giant IS Caliper to Post fork adapter was to small, to fit a 180 rotoron my new forks so i got one of these an my lbs fit it without any trimming so im thinking the skareb must have 8" size post mount legs an the rebas 6" the normal standards are 6" 160 rotor an 8" 180 rotor but as the giant adapter only looks about 10mm shorter then the hope 20mm the skarebs may be 7" post mount legs an the giant adapter 10mm if i am wrong please tell me underneath this post, thank heavens for Hope an crc, when you search the net an certain sites it keeps pointing youi towards is fork to post mount caliper adapters, when this is the one your searching for, why are there not more companies making these? an why are they 2 to 3 times more exspensive then post to post mounts an rear is to post etc, an the only colors ive found are grey an red there should be more choice of colors an they shud be cheaper But at least hope an a few companies from china/tiawan are making these or we would have to buy new brakes or new forks 25 August 2014
Rated 4 out of 5 by Good & light Worked as expected in front , +20mm in disk diameter but it's +40mm in the back So with my 160mm F&R IS calipers I now have 180mm in front and 200mm in the back. 14 August 2014
Rated 5 out of 5 by Very elegant fix A very cost effective solution to keep your perfectly serviceable IS system brakes, when you've just purchased your new post mount forks. 08 May 2014
Rated 4 out of 5 by Worked for me! Its a complex business these adapters eh? For me it worked fine, I have a pair of Rockshox XC 28's with Postmounts for brakes and bought a set of IS type Hope Mono m4's with a 203mm rotor for the front. This adapter worked perfectly but needed to get some shims/washers to get the right distance to the rotor. 18 March 2014
Rated 5 out of 5 by Not pretty but 100% functional Despite the warnings I fitted this to my Marzocchi 2012 corsa sl fork with a mono-mini caliper. No problems at all. Usual hope quality, recommended. 20 March 2013
Rated 5 out of 5 by Good product, if you have 180mm or less PM fork. The +20mm is not +20mm of your IS brake setup, it is +20mm of what the PM fork is made for! So if your fork is made for 180mm, you need 180mm+20mm= 200mm disc. If your fork is made for 200mm and there is no 220mm disc for your caliper, do not buy this adaptor! Then you need new brakes instead :-P (or a different fork). 06 June 2012
Rated 5 out of 5 by It Works If your forks are Post mount and your brakes are IS then you need an adaptor, i got this one. It works and it's well made so i guess it shouldn't get anything other than 5 stars. Plus you can/have to run a bigger rotor so your brake will seem more powerful 20 June 2011
Rated 5 out of 5 by FANTASIC BIT OF KIT I NEED THIS ADAPTOR WHEN I UPGRADED MY FORKS FROM 03 Z3'S TO MANITOU STANCES. WOKED A TREAT VERY HAPPY AS HOPE ARE THE ONLY BRAKE COMPANY THAT DO THIS TYPE OF ADAPTOR. I HAD A MINI IS MOUNT AT THE TIME. THIS ADAPTOR ALSO FITTED 06 MX COMP BOMBERS AND AS FOR THE MUPPET THAT THINK AVID DO THIS ADAPTOR THEY DONT!!!!!! 02 January 2010
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3 Questions : 4 Answers

Product Q&A

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Age: 25 to 34
Gender: Male
Attitude: Passionate and Obsessive
8 months ago
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Answer: 
This adaptor is intended to push the caliper out from the fork to run a 20mm larger rotor than the minimum rotor size specified by the fork manufacturer.
Attitude: On the up
8 months ago
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Answer: 
Depending on the IS brake your using , this will take you out to 200 / 203 mm brake disc. This may involve shimming to get perfect clearances, no different to any normal IS system set up.
Age: 45 to 54
Gender: Male
Attitude: Passionate and Obsessive
5 months, 2 weeks ago
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Camden ,AU
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1 answer

Is this adaptor suitable?

I have a pair of Rockshox SID team issue 74mm Post mount.
I want to use a 54mm IS Caliper
Rotor size is 160mm
Age: 45 to 54
Gender: Male
Attitude: Just for Fun
5 months ago
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Penrith,GB
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Answer: 
This adaptor will fit the intended purpose if your fork model has a post mount standard for a 140mm rotor; this mount adaptor would then increase the rotor compatibility by +20mm = 160mm Rotor.
Attitude: On the up
4 months, 4 weeks ago
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is this braket compatible with marzocchi JRT ?
Age: 18 to 24
Gender: Male
Attitude: Just for Fun
3 months ago
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Rochdale,GB
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Answer: 
This bracket is for mounting an IS brake caliper (51mm between mounting holes) to a Post mount fork (74mm between mounting holes) with a 20mm increase in rotor size.
Age: 25 to 34
Gender: Male
Attitude: Just for Fun
3 months ago
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