Advertise on Bikeforums.net



User Tag List

Results 1 to 3 of 3
  1. #1
    Senior Member
    Join Date
    Apr 2011
    My Bikes
    Specialized Sirrus
    Posts
    144
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)

    Tubes, how come some have a short expansion and others have a larger range?

    Just curious because I'm looking at

    Avenir 700 Threaded Presta tubes. On Amazon they have some that are 23-25, while at REI they have the same tube but from 20-25. I also see some from 25-35. As I have 25mm tires I wanted to know if there is a reason for some tubes having a smaller range vs larger.

  2. #2
    These go to 11. DavidLee's Avatar
    Join Date
    Feb 2006
    Location
    Maryland
    My Bikes
    06' Trek 7.5 FX, '09 Dawes Steel SST
    Posts
    571
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Different size tires require different size tubes & the range of sizes varies from manufacturer to manufacturer. As long as the tube is within the range that your specific tire needs you will be fine. I say to go with the smaller range within your size requirements to save some weight, i.e., a 20-25 tube -vs- a 25-30 tube if you run 25mm tires.
    Melancholy is incompatible with bicycling. ~ James E. Starrs

  3. #3
    Senior Member Nermal's Avatar
    Join Date
    Jan 2006
    Location
    Farmington, NM
    My Bikes
    Giant Cypress SX
    Posts
    1,868
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Tell you what's even odder than the tube specs. I bought two spiral flourescent bulbs. They were both the same brand, but one promised to save $129 and the other $130 over 8 years.

    PS: They won't last anywhere near 8 years.
    Some people are like a Slinky ... not really good for anything, but you still can't help but smile when you shove them down the stairs.

Posting Permissions

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