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  1. #1
    "I'm OK!" dminor's Avatar
    Join Date
    Oct 2004
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    The 509
    My Bikes
    1971 Suzuki TS125/factory race kit/AHRMA-legal; 1969 Suzuki TS250/factory race kit; 1967 Suzuki K-15 Hillbilly Trail 80; 1977 Yamaha IT175; 1964 VanTech Scrambler racing frame
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    Cheap 22mm disc brake adapter for older Trek/GF bikes

    I was recently asked for my plans for a disc brake adapter I made for a neighbor-kid's GF a few years ago. I couldn't find my drawings; but I scratched around in my garage and found my first prototype and measured it up for the requester. After I got done and PM'd him, I thought maybe more people could benefit from my little bit of ghetto/shade-tree machine work. This adapts 51mm IS disc brakes to the old 22mm vertical-holed chainstay mounts on Treks and GFs.

    I know, the store-bought ones don't cost that much; but if you're handy and happen to live near a city with recycling yards that will sell you aluminum scrap by the pound, you can make one yourself for a little bit of nothing.

    I made this from a piece of 1x1x" 6061 angle. The 22mm holes need to be pretty close to the inside face (11mm), so with that thick of walls, you see I needed to relieve some vertical 'troughs' to accept the bolts/washers/aircraft lock nuts. I did these with a straight-shouldered bur bit for a Dremel. You could freehand it with a Dremel, of course, or chuck it in a drill press and 'precision bore' them if you choose.

    Doug







    [/QUOTE]

  2. #2
    Official Website Waterboy born2bahick's Avatar
    Join Date
    Dec 2004
    My Bikes
    a lot
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    That's a great DIY Doug! Thank for sharing.

  3. #3
    Junior Member
    Join Date
    Mar 2006
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    thanks so much for sharing!

    -J

  4. #4
    Pedals, Paddles and Poles Daspydyr's Avatar
    Join Date
    Oct 2009
    Location
    Btw the Mohave desert and AREA 51
    My Bikes
    Scott Spark 20, Orbea Orca
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    I get a sense that you have a fun garage.
    I think its disgusting and terrible how people treat Lance Armstrong, especially after winning 7 Tour de France Titles while on drugs!

    I can't even find my bike when I'm on drugs. -Willie N.

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