Advertise on Bikeforums.net



User Tag List

Results 1 to 8 of 8
  1. #1
    Junior Member Denny004's Avatar
    Join Date
    Apr 2008
    Posts
    12
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)

    Inner tube sizes

    I asked for an inner tube for a 700x35c tire. The sales person gave me an inner tube for a 700 x 28c-32c tire (Bontrager 48mm stem presta valve)--will this fit on my tire?

  2. #2
    Senior Member cyclist2000's Avatar
    Join Date
    Sep 2009
    Location
    Up
    My Bikes
    Masi (retired), Giant TCR, Eisentraut, Jamis Aurora Elite, Zullo (trainer bike), Cannondale, Stumpjumper, Waterford(N+1), Tern D8 (N+1)
    Posts
    2,844
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    probably, inner tubes stretch a lot. your tire is just the next size up, I would use it in a 35mm tire.
    I don't do vintage, I bought them new, rode them, kept them. Now they are just old bikes
    http://www.flickr.com/photos/bustercrb/sets/72157623483647522/

  3. #3
    Galveston County Texas 10 Wheels's Avatar
    Join Date
    Nov 2007
    Location
    In The Wind
    My Bikes
    GTO
    Posts
    25,862
    Mentioned
    1 Post(s)
    Tagged
    0 Thread(s)
    It will be fine in your tire.
    [SIZE=1][B]What I like about Texas[/B]
    http://www.youtube.com/watch?v=PGukLuXzH1E

    Set F1re To The Ra1n ( NY Night Rain Ride)
    http://www.youtube.com/watch?v=W7jfcWEkSrI

  4. #4
    Senior Member JonathanGennick's Avatar
    Join Date
    Apr 2007
    Location
    Munising, Michigan, USA
    My Bikes
    Hifi 29er, Stumpy 29er, Rockhopper 29er, ...
    Posts
    1,762
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    I used to obsess about those inner-tube size ranges. But I've learned that "close enough" is "good enough". Your tire is 3cm wider than the tube's nominal range. I would not give that small difference a second thought.

  5. #5
    Animated Member ahsposo's Avatar
    Join Date
    Jan 2010
    Location
    That's a joke, ah say, that's a joke, son
    My Bikes
    A Home Built All Rounder, Bianchi 928, Specialized Langster, Dahon Folder
    Posts
    6,990
    Mentioned
    13 Post(s)
    Tagged
    1 Thread(s)
    My concern would be the valve.

    While a presta valve will fit through a hole for a Schrader valve do you really want to do that?

    I'm making a big assumption here that this is for a hybrid style bike and the tube you are replacing has Schrader valves.

    Schrader:



    Presta:


  6. #6
    Senior Member JonathanGennick's Avatar
    Join Date
    Apr 2007
    Location
    Munising, Michigan, USA
    My Bikes
    Hifi 29er, Stumpy 29er, Rockhopper 29er, ...
    Posts
    1,762
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Quote Originally Posted by ahsposo View Post
    While a presta valve will fit through a hole for a Schrader valve do you really want to do that?
    There's enough reinforcement around the stems that I"ve never had a problem from sticking a presta tube into a Schrader rim. OTOH, I do not run really high pressures in my tires, so maybe I've just gotten away w/it for that reason.

  7. #7
    Animated Member ahsposo's Avatar
    Join Date
    Jan 2010
    Location
    That's a joke, ah say, that's a joke, son
    My Bikes
    A Home Built All Rounder, Bianchi 928, Specialized Langster, Dahon Folder
    Posts
    6,990
    Mentioned
    13 Post(s)
    Tagged
    1 Thread(s)
    Well I know that. But if the OP isn't used to dealing with Prestas why bother. I read an awful lot a posts where even experienced riders break the valve stem on Prestas. I've done it.

    The nature of the OPs question leads me to assume (it's an assumption and I could be wrong, this would not be unusual - ask my wife) that they are relatively inexperienced with bikes. Shrader valves are easier to deal with. But that's their only advantage, IMO.

  8. #8
    Senior Member JonathanGennick's Avatar
    Join Date
    Apr 2007
    Location
    Munising, Michigan, USA
    My Bikes
    Hifi 29er, Stumpy 29er, Rockhopper 29er, ...
    Posts
    1,762
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    @ahsposo, good point. People are often flummoxed when first confronted by presta valves.

    You know what else gets people? Name-brand bicycle floor pumps all seem to work backwards from what everyone has grown up used to. The first time I bought a floor pump, I was shocked to find that one lifts the lever to lock the pump onto the valve, and pushes down to release. For 40+ years I had only ever used pump heads on which you push down to lock and pull up to release. Every friend and neighbor who borrows my floor pump is at first confounded by that reversal. Inevitably, they pull up on the lever to release -- or so they thing -- and frustrate themselves in trying to jam the pump head onto their valve.

Posting Permissions

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