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160 to 180mm brake adapter

Hi, could someone advise me on what adaptor I would need to upgrade my caliper to handle 180mm rotors please. Maybe even 203mm.



  • steve_sordysteve_sordy Posts: 2,438
    I have had this info for several years, so I can't vouch for the pricing quoted.

    These are for mounting the callipers to fit discs of various sizes.

    The above adaptors are available from Superstar Components for £4.99 each (type 9 +£1)

    Type 1: PM-IS F160
    Type 2: PM-IS R160
    Type 3: PM-IS F180
    Type 4: PM-IS R180
    Type 5: PM-IS F203
    Type 6: PM-IS R203
    Type 7: PM-PM F&R180
    Type 8: PM-PM F&R203
    Type 9: IS-IS F203

    All you need to do next is to determine whether the brake mount is PM (post mount) or IS (International Standard) type.
  • mully79mully79 Posts: 904
    Your current fork has no adapter therefore it’s 160mm post mount.

    If you go to 180mm you will need a 160pm to 180pm adapter.

    if you go to 200mm you will need a 160pm to 200pm adapter.

    Check the maximum brake size your fork is rated to handle before going 200mm
  • mully79mully79 Posts: 904
    Note Also make sure adapter is 160 to 200 if going to 200.
    If it’s not clear (as in type 8 on Steve’s list) it maybe 180mm to 200mm.
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