Tire change & twisted tubes

Discussion in 'The Garage' started by StG, Mar 6, 2013.

  1. StG

    StG Been here awhile

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    So I decided to install some rim locks & finally had the pleasure of doing a tire change. However, when I went to pump the tires back up using a bicycle floor pump, I noticed alot of resistance in getting air in the tires. My gauge would shoot up to 60-80 psi on every pump, before slowly dropping back down. I'm thinking this doesn't feel right.

    Please tell me this is normal??? Did I possibly install the tube with a twist?
    #1
  2. Yossarian™

    Yossarian™ Deputy Cultural Attaché

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    You probably don't have the pump's inflator on the valve stem far enough to depress the valve core plunger.
    #2
  3. StG

    StG Been here awhile

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    Holy crap! Thank god I'm an f'in moron:D. I was worried I'd have to spend another couple hours taking the tires off again.

    Funny, you'd think I'd know better, after doing about a hundred bicycle tire changes. Anyways, now I can go ride this afternoon. Thanks, and please just ignore this thread:freaky
    #3
  4. Skinner

    Skinner Mr.KTM

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    Oh no, this thread will stay alive!!! :lol3 others must learn from your mistake :clap
    #4
  5. Droptarotter

    Droptarotter Long timer

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    Did you mix up a Presta valve with a Schreader valve??

    Keeping this thread alive!
    #5
  6. Bill the Bong

    Bill the Bong Supern00ba

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    Bump
    #6
  7. qkenf4u

    qkenf4u Been here awhile

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    learned a few new tricks while working with the guys at my work.. (eww hardley guys) ....
    baby powder in the tire
    put the tube in the tire before you mount it
    pump the tube up till its just round
    put the tire valve thru hole and thread nut on a couple threads
    use lots of lube on bead
    i use 16" tire irons if i dont use the machine at work... :clap
    #7
  8. MadMax

    MadMax Marveling...

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    Hey Folks, could anyone tell me if I've caused too much damage to the bead on this tire, while trying to lever it on the rim? Thanks in advance for any advice.

    [​IMG]
    #8
  9. ohgood

    ohgood Long timer

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    no, but ill bet that deathwing is more than 4 years old....
    #9
  10. ohgood

    ohgood Long timer

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    6" tire irons should be plenty, or you're doing it wrong...

    rim lock in, with 3 threads engaged on the nut
    tire between rimlock and rim, one side only
    powdered tube in, stem through hole, deflated!
    lube, lots of it, on the beads
    iron on last side of tire, starting at rimlock
    break beads again, apply lube
    gently air to 5lbs, break beads, lube again
    remove valve stem cherry, air quickly to 50lbs... watch bead seat
    remove air source, cherry in while deflating (quick hands)
    inflate to desired cold temp pressure
    CHECK BEAD WITH FINGERTIPS, all the way around both sides.
    you'll feel inconsistancies better than you'll see them.


    be careful, its always possible for lube to goop out of the rimlock or valve stem holes in the rim, and coat the tire, at a red light ;-)

    if you wet the tires shortly after install, expect to see bubbles and goop coming from the rimlock hole, and valvestem hole, in the rim. should stop after and hour. if not... you might have pinched it !
    #10
  11. MadMax

    MadMax Marveling...

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    The date mark on the tire reads: 2512. I'm hoping it is not 4 years old.

    Still can't get about a 1/4 of it on the rim. I guess I'll have to take it to the "stealer" tomorrow. I appreciate the response.
    #11
  12. buls4evr

    buls4evr No Marks....

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    .......and should be thrown away anyway just because it is a deathwing. Save yourself some crashing:clap.
    #12
  13. qkenf4u

    qkenf4u Been here awhile

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    to each their own.... i do tires (dirt/street) couple times a week at work and have my own tricks of the trade for dirt tires..... :evil street tires are done on the machine always.. one minute process there.... :clap oh and i like working SMARTER NOT HARDER so thats why i use 16" irons.... leverage is your friend :p
    #13
  14. qkenf4u

    qkenf4u Been here awhile

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    how much air pressure are you putting in the rim before you give up ?
    #14
  15. racer1735

    racer1735 Been here awhile

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    What everyone will tell you, and they told me, is that you have to have the 'opposite side' of the tire down in the 'dish' of the rim. Of course, if it was just that easy, we wouldn't be asking why the hell we can't get our tire mounted, right?

    What i do to get the tire in the well, is to use a 'C-clamp' on one side to slightly pinch the tire so that it will stay down in the dish of the rim. Once I started using that method, I found it easy to mount just about any tire...tubed or tubeless.

    Now, if the side you have already mounted starts to ride back out over the rim, just stick a tire iron in at that spot to hold the bead in place.

    I konw this reply is much later than you needed, but if may be helpful for future use or anyone else reading.
    #15
  16. jon_l

    jon_l Long timer

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  17. RVDan

    RVDan Long timer

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    I replaced my Deathwings with kenda 270's. I still crash.
    #17
  18. Lomax

    Lomax Nanu-Nanu Adventurer

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    That DOT date means it was manufactured in the 25th week of 2012 so they are not very old.

    Marc
    #18
  19. STisma

    STisma Been here awhile

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    For the difficult and stubborn front tires (19" here) this seems to work, for me that is.

    [​IMG]

    It also takes plenty of lube, couple of minutes of foot stomping and an iron for the last press-on. Oh yes...plenty of lube. More lube.

    And no issues with tube getting twisted, pinched, ....
    #19
  20. buls4evr

    buls4evr No Marks....

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    Why so much trouble changing tires? I took off two and put on two in 1 hr, 15 mins including taking them off the bike 2 days ago. This is not rocket science..... Are you taking the tube out after you break both sides and open up 1 side(the disc side)? Do you have 3 GOOD Spoons (MSR, MotionPro)? Do you have access to dishwashing soap?No need to waste 10 zip ties to do this.The only part that might slow you up at all is a rim lock.Also put just a touch of air in the tube so that it kind of takes a shape before you re-insert it back in the carcass. And a good compressor to pull up that bead.
    #20