Advertise on Bikeforums.net



User Tag List

Results 1 to 6 of 6
  1. #1
    Senior Member StevePGN10's Avatar
    Join Date
    Sep 2008
    Location
    Wilmington, Delaware
    Posts
    89
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)

    What Tire for a Smooth 27" Rim?

    I just had two tubes blow in my face. I attributed the first one to the really trashed condition of the old tire that came on the bike. I was trying to confirm that the bike it was on would work OK permanently mounted on a trainer. I figured the fabric and rubber separated from the bead, allowed the tube to come out and blew out. I removed a tire and tube from another 27 x 1 1/4 rim that I knew have worked flawlessly for over a year. I'll be damned if it didn't blow up in my face as I mounted the bike onto the trainer, I could see the tire come out of the rim and the tube blewout. That's when I decided to investigate. I had previously checked that the rim liner was intact, no spokes were sticking out, and no debris was sticking in the rim. I had a dim memory of reading about smooth sided rims that have no means of seating the bead on a tire, and that is what this thing is. It is an old Campy rim and hub. It is otherwise unmarked as to size. The original tire was marked 630/ 27 x 1 1/4.

    What type of tire is required to use with a beadless rim? I searched Sheldon's site and the BF archive, but they seem silent on the subject.

    Thanks for your help, and speak loudly when you respond, I seem to be having difficulty hearing just now.

    Regards,
    Steve

  2. #2
    Senior Member
    Join Date
    Dec 2005
    Posts
    7,742
    Mentioned
    6 Post(s)
    Tagged
    1 Thread(s)
    Most wire-bead tires will work; Kevlar bead/folding tires will usually not. But even with wire-bead tires, you're likely best not to go above 85-ish PSI.

    Neal

  3. #3
    Banned
    Join Date
    Dec 2004
    Posts
    616
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    +1 Wire bead and modest PSI is what is required when you have a rim that lacks a hook.

  4. #4
    DRF aka Thrifty Bill wrk101's Avatar
    Join Date
    Jan 2008
    Location
    The NC Mountains
    My Bikes
    Too many to list, all vintage
    Posts
    19,472
    Mentioned
    57 Post(s)
    Tagged
    1 Thread(s)
    +2 Wire bead, moderate pressure. I have been picking up low end wire bead tires from Niagara for less than $6.

  5. #5
    Crank photostudent's Avatar
    Join Date
    Jul 2007
    Location
    Raleigh NC
    My Bikes
    Schwinn Varsity, Peugeot
    Posts
    57
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    The wire beaded tires from Performance bike seem to fit a bit tighter than the ones from Niagara, (I use both), but cost a couple bucks more.
    "I'm only going to buy one more old 10 speed bike..."

  6. #6
    Senior Member
    Join Date
    Feb 2007
    Posts
    1,132
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Install tire & tube, manually pump just a little air at a time , stopping to check that tire is seated evenly around on BOTH sides. Continue til you get to about #75. Examine all around on both sides to make sure it is evenly seated.

Posting Permissions

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