Surly 1x1 fork - correct screw size for fender mounts?- Mtbr.com
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  1. #1
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    Surly 1x1 fork - correct screw size for fender mounts?

    Can anyone help me out with this one? I am running an old, v-brake only 1x1 fork on my wife's town bike. I just picked up some Planet Bike fenders for her, and the included screws seem to be the wrong thread pitch (perhaps wrong size?) for the fender/rack mount screw holes on the fork. Can anyone tell me the correct size/pitch for this application?

    thanks in advance!

  2. #2
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    well, Surly beat you guys to it:

    Those eyelets are 5x.8mm. There may be some overspray in the threads so it may be necessary to run a tap through them.

  3. #3
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    Quote Originally Posted by grundy
    well, Surly beat you guys to it:

    Those eyelets are 5x.8mm. There may be some overspray in the threads so it may be necessary to run a tap through them.
    I don't understand this post. I don't understand what Surly beat what guys to what.

    10-32. The size of water bottle mounts, fender eyelets, etc - also same size as rackmount equipment. Which is the SAE equivalent to what grundy said. Here is a copy and paste from Sheldon Brown:

    "A few sizes are more or less interchangeable between the American and metric systems; particularly useful is #10-32/5 mm. These can generally be interchanged with no problem. This is a common size on bicycles. The eyelets for attaching racks and mudguards to the dropouts are 5-mm-threaded on most of the better-quality bicycles; this size is also used for toe-clip bolts, and various brake and derailer parts. Since 5 mm and #10-32 are essentially the same size, you could buy either size tap, but the American #10-32 size is easier to find and likely to be much cheaper." - Sheldon Brown
    Last edited by Gritter; 04-03-2011 at 12:15 AM.
    Soma, Surly, Salsa, Schwalbe, SRAM, Sun-Ringlé

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