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  1. #1
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    drop out question

    This is in relation to me building a bike trailer. I've got my metal plate that I intend to make drop outs from and need to drill a hole and then turn it into a slot for my dropouts. I just measured my drop outs on my mt bike and it is 1cm wide. This is america and I seriously doubt I will be able to buy a 1 cm drill bit. 3/8 however is .95 cm's. A measley .5mm away. Should this work?
    Thanks,
    Scott

  2. #2
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    What is the diameter of the axle? If it is a track axle it probably won't fit as they are usually 1cm. A quick release axle is less and would fit.
    Also I think you would be able to find one in a hardware store. You might have to call around to a few but I'm almost sure one has them.

  3. #3
    Senior Member joejack951's Avatar
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    Get a 25/64" drill bit if you can't find 10mm. It'll be close enough.

  4. #4
    Senior Member FlatFender's Avatar
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    You should be able to find a 10mm bit at any hardware store.

  5. #5
    Senior Member DannoXYZ's Avatar
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    Drill multiple-holes along where you want to the slot for the drop-out to occur. Then connect the holes with a jig-saw. Finish off with a lot of elbow grease using a file.

    How are you attaching the trailer? To your rear-dropouts? Do you have a pivot for lateral rotation? How will you prevent vertical rotation of the hanger at the drop-out?

  6. #6
    cyclist
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    As it often happens, I answered my own question. Hitachi has the standard and metric dimensions and I ended up getting something 10.3mm. I wish I would have stuck with the 9.5mm as the axle is no where near 10mm. It should work just fine regardless.
    Danno, I'm attaching it to my rack. I'm coppying a design by some sweedish guy... http://www.andersj.se/projekt_startsida.htm I'm loosely basing it off this idea.
    Scott

  7. #7
    cyclist
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    Oops, the link goes to his entire site. Under the pics of the kayak paddles go to "Kajakhållare till cykel "
    Scott

  8. #8
    Senior Member DannoXYZ's Avatar
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    Quote Originally Posted by ncscott View Post
    Danno, I'm attaching it to my rack. I'm coppying a design by some sweedish guy... http://www.andersj.se/projekt_startsida.htm I'm loosely basing it off this idea.
    Scott
    So you're attaching the trailer to the rear of the rack?

  9. #9
    cyclist
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    thats the idea. Basically imagine a rectangular frame with two front 26inch weels. It will tilt up at an angle to reach a peice of wood that extends about 4-6 inches off the back of the rack. A peice of webbing will extend off the trailer through the extension and attach to the seatpost/seat tube junction. At the rear end of the bottom of the rectangular frame will be the bottom of the trailer with a floor extending towards the front of the trailer and attach via a verical peice back up to the frame of the trailer. Most likely a plastic bin will keep my groceries tidy. Thats the basic idea, now I need to figure out how to make it work. I've never ended a project unssucefully yet.
    Scott

  10. #10
    Senior Member DannoXYZ's Avatar
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    I think the webbing can be a problem with wood. Why not all metal construction with a real pivot?
    Last edited by DannoXYZ; 08-02-08 at 07:03 PM.

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