Tubes Solid tubes = no air

Discussion in 'Bicycle Repair' started by darwin, Aug 6, 2008.

  1. darwin

    darwin Well-Known Member

    As some of you know I had my 1st flat recently and am learning all over again about bicycle tubes and tires. While I was at wallyworld I saw that they sold a solid rubber tube that fits into the tire, cost was around $20 I think. Has any one used these and if so what are your thoughts? If they work the idea of no more flats is cool. Ive seen those airless tires and have decided for a friction drive they wouldnt work to well because of their cost and replacing them more frequently.
     

  2. turkeyssr

    turkeyssr Guest

    You'll see varying opinions on these tires within the forums. The solid tires can't absorb shock as well as a common pneumatic tires. I've had both a solid polyurethane tire and the 'no more flats' version you saw at Wallyworld. Neither impress me very much, unfortunately. I REALLY wanted to like both of them. I ended up taking off the solid tire and simply not use the other. The solid tire squirmed on the rim and therefore didn't inspire confidence when cornering.

    See if you can find the 'flat blocker max' at Wallyworld. They are VERY thick and contain selant in case of a leak. I would use them, but they only come in schrader valve.



    --John
     
  3. darwin

    darwin Well-Known Member

    OK 1 more question what is a presta valve? Ive noticed with tubes you have a choice of that or the shrader valve.
     
  4. turkeyssr

    turkeyssr Guest

    There are pictures and information here: http://www.sheldonbrown.com/brandt/presta-schrader.html

    In short, Presta valves came to be because the narrow rims of old weren't strong enough to allow for the larger diameter schrader valves. I'm not sure if that's still true. I don't really like Presta valves, but you end up getting stuck with them, so I've adapted. They take a special (cheap) adapter to be used with a common air pump, if the pump isn't already designed to fit. -- John
     
  5. DougC

    DougC Guest

    I don't know much about the stuff that Wal-Mart sells.

    I know that the guy who makes and sells the air-free tires online, makes them to your order. You include how much you and the bike weigh, and he sets the machine to blow the urethane density accordingly.
    ~
     
  6. B.K. Hosken

    B.K. Hosken Member

    So if you get fatter, you need new tire inserts?? No, I'm not serious...
     
  7. Pastor M

    Pastor M New Member

    Id advise against the solid tires since they don't have as much give. Your tires will likely go out of true much faster. Also if you hit a lot of bumps you may just end up bending the rim (the guy i bought mine from did it with inflatables).

    Dunno if the weight matters or not but they are heavy (for tires).
     
  8. Skyliner70cc

    Skyliner70cc Active Member

    I don't like them. I rode a bike that had them and the handling was poor, the rolling resistance was noticeably higher, and the bike weight increase was a large strain on the my engine.
     
  9. mark2yahu

    mark2yahu Member

    About those No More Flats innertubes, they fit tires that are 24" x 1.75" and another box has the 26" x 1.75". Since they don't expand, you can't use them for the fat cruiser tires (26 x 2.125"). They are difficult to put on, and the ride feels spongy. They're best for people who don't weigh a lot.

    **The newest option is having your tires filled with polyurethane foam. www.airfreetires.com does this now. You ship them your tires, they pour the liquid polyurethane, which expands and fills the inside of the tire. They do something to the innner part of the tire so that the foam doesn't run out.
     
    Last edited: Aug 25, 2008
  10. oldguy

    oldguy New Member

    flat tires

    If you are having regular flats from junk on the road, look at tire savers. You can get a description of them at www.sheldonbrown.com. I started using them in Ca. back in the 80's and went from a lot of flats to almost none. The wire brushes lightly against the tire and knocks off shards of glass and thorns and other sharp bits before they dig in. I have a set that I have had for many years and I just replace the part that rubs against the tire. You will wear out many tires before you need to do this. I have moved them from bike to bike. Sheldon Brown doesn't think that they are that good, but I know better. Try to find some, they are cheap and work well.
     
  11. mark2yahu

    mark2yahu Member

    neat idea, oldguy. sounds like i can make one.
     
  12. Mountainman

    Mountainman Active Member

    From an old bicycle shop owner - rings a bell - these sound like a good idea for many -- I have a friction drive - anything in tire will possibly be driven in deeper when coming into roller - so for me on the rear at least - no go. Ride That Thing - Mountainman
     
  13. TWalker

    TWalker Guest

    looks like it would be more useful on friction drive than non-friction...
     
  14. Mountainman

    Mountainman Active Member

    with those tire savers

    with those tire savers
    hopefully if something gets picked up by the tire
    that thing will get knocked off while traveling through the tire saver
    before tire makes contact with roadway again
    pushing thing picked up deeper into tire

    with friction drive
    anything picked up by tire
    comes right up to friction roller -- which (may) push it in deeper

    thus THING picked up (rear tire) comes to roller before tire saver

    I used to see many using these tire savers -- not much today ??

    as we ride those things
     
  15. Junster

    Junster Member

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