I'm shopping online for some new tires, and see that some models are sorted by folding and wire beads? What exactly does this mean, and do I need a special rim to support them?

  • Sheldon Brown can show you how to fold a wire bead tire. Grab the tire at 10 & 2 O'Clock and overlap your hands until you have an uneven-size figure eight. Then just grasp the large loop of the figure eight, twist and push it towards the middle of the eight until you have three loops. Just tie it up with a strap and toss it into a bag. Commented Sep 27, 2010 at 16:59

1 Answer 1


Folding versus wire refers to the material within the bead or 'edge' of each side of the tire. Foldable bead tires use kevlar in most cases (I think) and tires with each type are entirely compatible with the rim size that the tire is designed for (in the absence of a manufacturing defect). Folding bead tires have a few advantages (in my opinion):

  • Somewhat lighter
  • Easier to store (can be refolded by flattening the tire and folding it into a bundle)
  • Bead has more stretch to it, so mounting the tire is usually less difficult

For these advantages, you will probably pay more for a foldable bead tire when a tire model includes both options. Also, wire bead's also appear more often as the OEM tires on lower end bikes.

  • 1
    I've found folding tires harder to mount (at least the first time) since the body of the tire is essentially flat and won't easily assume a tire-like (toroid) shape. I see no advantage unless you're a weight geek or need the foldable feature for touring. Commented Jun 7, 2014 at 11:20
  • Less stretch can also be an advantage. I have that the bead fail on some older foldable.
    – paparazzo
    Commented Jun 21, 2014 at 9:50
  • One other advantage, is that you can put a folding version in your jersey pocket.
    – WireGuy
    Commented Oct 2, 2015 at 13:27
  • 2
    The bead having more stretch is a double-edged sword. It means in its unstretched state, it is very short, or else it would suffer from blowouts. Thus, you have to stretch a folding bead tire unlike a wire bead tire that usually requires no stretching. Therefore, folding bead tires may actually be more difficult to mount.
    – juhist
    Commented Sep 6, 2020 at 8:55

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