Advertise on Bikeforums.net



User Tag List

Results 1 to 5 of 5
  1. #1
    Senior Member PandaExpress's Avatar
    Join Date
    Sep 2011
    Location
    Orange County
    My Bikes
    Bianchi mutt bike
    Posts
    79
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)

    Type of bolt used for rear racks?

    Hi all, really beginner question. My rear bike rack came without any bolts, so I need to swing by the hardware store and pick them up. What type and how many would I need for a standard rack installation?

    Thanks in advance

  2. #2
    Senior Member
    Join Date
    Mar 2010
    Location
    City of Brotherly Love
    My Bikes
    Raleigh Companion, Nashbar Touring, Novara DiVano, Trek FX 7.1, Giant Upland
    Posts
    1,048
    Mentioned
    1 Post(s)
    Tagged
    0 Thread(s)
    A typical installation uses 8 M5 bolts and 4 M5 Nylock nuts. The length of the bolt by the drive-side dropout is critical, if its too long it can interfere with the chain and if its too short it won't hold.
    Last edited by Bezalel; 09-26-11 at 11:38 PM.

  3. #3
    Gear Combo Guru Chris_W's Avatar
    Join Date
    May 2007
    Location
    Switzerland
    My Bikes
    Spec' Tarmac (road), Spec' Secteur Disc (commuter & tourer), Salsa Mamasita (MTB), CoMo Speedster (tandem), Surly Big Dummy (cargo), Airnimal (folder), a train pass, and NO car :)
    Posts
    2,044
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Metric bolts, probably size M5, maybe 15mm long, probably four of them, but these things vary a lot depending on the exact frame and rack. Get the more expensive stainless steel bolts if they are available so that they won't corrode. Put something on the threads (just some standard grease if that is all you have) before installing them.

  4. #4
    Senior Member
    Join Date
    Jun 2010
    Location
    Pearland, Texas
    My Bikes
    Cannondale, Trek, Raleigh, Santana
    Posts
    5,363
    Mentioned
    2 Post(s)
    Tagged
    0 Thread(s)
    PE, Test with one of the bottle cage screws, if it fits go to the hardware store. Most likely a M5, but test with a nut.

    Brad

  5. #5
    Senior Member
    Join Date
    Sep 2010
    Posts
    2,567
    Mentioned
    1 Post(s)
    Tagged
    0 Thread(s)
    PandaExpress: I like the looks and ease of use of stainless hex socket head cap (button head as well) screws rather than the more common hex head machine screws. Don't forget to put some stainless flat washers on your list as well as the above-mentioned Nylok nuts , also called elastic stop nuts. The screws typically come in 2mm length increments and you can add an extra washer or two to get the length just right especially on the drive side dropout. Fender washers have a larger ID and can be useful if your rack has oversized holes. My local True Value store has an extensive stock of stainless hardware.

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •