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Bicycle Mechanics Broken bottom bracket? Tacoed wheel? If you're having problems with your bicycle, or just need help fixing a flat, drop in here for the latest on bicycle mechanics & bicycle maintenance.

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Old 06-12-03, 08:18 PM   #1
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Can't get the tire back on the rim

For some reason, I can't seem to get the tire back on my rim. I put the tire in my suitcase when I was flying home, and I now have been sitting here for a couple of hours, but I can't force the tire on.

First, I partially inflated the tube, then placed the tube in the tire, then tried to get the tire back on the rim. I can't get about 25% of the tire on the rim.

I wondered if perhaps the metal on the rim expanded. I just talked to my friend, who is an engineer, and he said that even if the rim expanded, the rubber would too, since they're both at the same temperature.

Am I doing something wrong?
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Old 06-12-03, 08:24 PM   #2
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Put one side on at a time. The first side usually goes on without too much of a fight. Then make sure to insert the valve stem (I've forgoten before!)

Then starting at the valve stem work the 2nd bead around. Make sure the 1st bead is loose in the center (lengthwise) of the rim. This will give you much needed slack.

I grab the tire with my palms and roll the tire onto the rim using the palm of my hands. Hard to explain, easier to show you, but alas, I'm here and you're there!

It may also help to remove whatever air is in the tube. You just need enough in there to keep the round shape of the tire!

Hope this helps
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Old 06-12-03, 09:20 PM   #3
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Yeah, that's what I've done so far, with no luck. I've been trying to roll the rim onto the tire. The one side was easier, but the other side is just not budging. I also took most of the air out except a really small portion of it.

I may just take the tube and tire off and start all over again... again.

Thanks!
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Old 06-12-03, 09:44 PM   #4
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some rims do not like people!!!! And I know several Hemen will say never, never....but sometime you have to CAREFULLY use a couple of tire levers to get every thing back together.


BUT, it is much better to enjoy this learning experience in the comfort of your home, near the kitchen than on the side of the road in the rain, 30 miles from home.
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Old 06-12-03, 10:04 PM   #5
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Very true.... I'm glad I'm at home, so I can do it at my leisure. Funny thing, when I'm out and my tire blows, I have none of these silly problems. It's only when I'm at home in the privacy of my own home.

:confused:
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Old 06-12-03, 10:24 PM   #6
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Ok, can't get the tire on the rim for whatever reason- I've used levers, and I've tried to push it through by hand, but nothing, so I'm just gonna bring it to the bike shop first thing and let them charge me a fortune to get this last bit on. This is just odd, but I am not having much luck with my bike lately- I seem to have odd problems often here. The worst part is that I'll miss the Bike To Work Day tomorrow morning at the Daley Plaza... again! For once, I'm in town for it, and I won't be able to participate cause the bike shops don't open until 10am.
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Old 06-12-03, 11:09 PM   #7
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Koffee, what I do in those situations is use the levers I got and push them sideways against the bead of the tyre to get the tyre to sit into the rim. I have a lot of trouble getting my wire bead slicks on (I've broken a couple of levers already), but the push-sideways method seems to work for me.

When I say push-sideways, I mean push the lever sideways, along the curvature of the rim and bead.

What tyre levers are u using?
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Old 06-12-03, 11:12 PM   #8
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I'm in engineering, and from what I know of material properties, different materials require different temperatures to expand due to temperature. It is very probable that the rim and tire expanded/contracted at different levels.

Did you have problems with this same tire/rim combo before? I've been having the same problem as you with my current rim/tire combination, almost impossible to mount on rim. I am normally very a calm person, but this is one thing that can really make me cuss and through a tantrum!! Good luck!
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Old 06-12-03, 11:32 PM   #9
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One time, I was puting a tire on the rim and the bead of the tire had rolled over onto itself. I didn't notice and kept trying to get that bugger on. I took it off to start all over and notice the whole bead was rolled over.
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Old 06-13-03, 07:21 AM   #10
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<sigh>

Well, I took the entire tire off and tried all over again, but no dice.

On top of that, I did an experiment- I took the inner tube out and tried to put the tire on without the inner tube, and it does not go on the rim, no matter how hard I tried. So now I'm confused.

I'm ok. The bike shop opens at 10am, so I'll be heading over there to get them to put the tire on the bike instead. I'm going to get them to show me what they did, in case they're something I'm missing, although I don't think so. Usually, the hardest part of changing the rear tire for me is getting it back on the bike, not getting the tire on the rim!

Thanks anyway.

Koff
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Old 06-13-03, 10:52 AM   #11
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<SIGH>

Update...

I walked the 20 min to the nearest bike shop, and I told them about my situation and gave the guy my wheel. He said they'd have to charge me (of course), and I said go ahead, because I just wanted to ride!

So I give him my old inner tube, and he asks me if I want to put my new tube in instead, and I said no, use the old one. There was nothing wrong with it.

So he wrestles the tire back on the rim and pushes the inner tube in. He said it was a bit harder than normal to get the tire on the rim, then he puts the air i the tire, and he said he put in about 95 psi. They end up charging me $5, and I gladly paid it. The guys says that the Continential tire I bought normally have stiffer beads because they're for racing, so until I've used it for a while, the beads will be a bit stiff. I thought to myself "I'm gonna ride the hell out of this wheel, then!"

I was so glad to have this over with. I get home, and as soon as I put my hand on the wheel to feel how firm it was, I notice that the tire is flat!

I call the LBS all over again and explain the situation- he says there must have been a hole in the tube, which I tell him can't be possible. I rode the bike until the day before I left, and it wasn't flat. But the guy says that unless the presta valve wasn't screwed in, then it's flat, and I'll have to bring it back in.

So I hang up the phone and blow more air in the tire. Then I jump on bike forums. And I just check the stupid tire, and it's going flat again. ***** and damn!!! This day sucks.

I'm going to try and change the stupid tube myself. I have a new one- why didn't I just tell the guy to put the new one in to begin with? Damn, damn, damn...

This day sucks. Did I mention that already?
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Old 06-13-03, 11:24 AM   #12
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it's possible you pinched the tube when removing it and/or trying to put it back on.

don't forget to have the bead of the tire in the center of the rim when putting it on. that is, while you are using the tools on one side of the tire have the bead of the rim farthest away from the tools in the lowest part of the rim. this will allow you to pull the tire further w/ the tools helping it over the rim.

hope that made sense....
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Old 06-13-03, 11:25 AM   #13
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Hey Koffee just a thought, liquid dishwashing detergent with a little water will work as a lube, this may help slip the tire on the rim. In addition, good metal tire levers, like Park’s TL-5, may give you the leverage you need.
Good luck.
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Old 06-13-03, 11:27 AM   #14
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It sounds like either you or the mechanic pinched the tube while trying to mount the tire. I find that wired beaded Contis in most part a pain in the A to mount. If I can afford it, I buy kevlar beaded tires.
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Old 06-13-03, 11:29 AM   #15
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last time i hadto put a tire on a rim that was tight, i jus used the giggest damn screwdiver in my toolbox. it was a ***** to put on
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Old 06-13-03, 11:38 AM   #16
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Baby powder helps also.
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Old 06-13-03, 11:41 AM   #17
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Today is friday the 13th, afterall.
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Old 06-13-03, 11:45 AM   #18
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I purchased some wire bead 1" slicks for my little sisters "mountain bike". They honestly took me 3 hrs to mount. Good luck with chaning the tire, I'll never buy a wire bead tire again.
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Old 06-13-03, 12:16 PM   #19
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Well-

I finally got the freakin' tire on the rim- I had to muscle it in, and I feel like my wrist is going through some carpel tunnel syndrome.

I'm thinking of getting rid of the tires and going with some kevlars or something along those lines. I hate these Continentials. I really do. I just can't imagine what I would do if I got a flat in the middle of nowhere, then spent hours and hours trying to muscle the tire back onto the rim! I'm going to call around to some bike stores and see if anyone will take them for a trade- then I can get some new tires that will put me through less stress.

Dang, I can hardly type... my fingers and wrists hurt that bad. I guess I'll chalk this up to a learning experience.

Thanks for everyone's advice.

Koffee
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Old 06-13-03, 12:53 PM   #20
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On that note, has anyone used one of those crank bros' speed levers? I bought one, and have yet to need it (knocking on wood) I wonder if it would work in a situation like this.
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Old 06-13-03, 02:43 PM   #21
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two things that I have found to work, a little lubricant on the end of the lever works, I prefer corn oil like mazola or something to that effect, or if all else fails, just shove your rim into the freezer before you are going to run a tire around it. Wear gloves though, I have had my hand stick to the sidewall of a rim before.
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Old 06-13-03, 02:44 PM   #22
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the speed levers work well, with kevlar bead tires, otherwise you will break the end off of it.
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Old 06-13-03, 03:58 PM   #23
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I always found that old standard bicycles to be very difficult to put tire back on but yours is 26" modern new standard stuff?Heres what I do put the tube in tire then insert valve then get both hands going opposite the valve and work your tire on the rim.I have found it needful to let a bit of air out of the tube towards finishing up and then you should have no problem at all...If your still having problems get some dish water soap in water and add a bit to your tire and rim.Some can be extremely easy and others need a little bit of english here and there?
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Old 06-13-03, 04:21 PM   #24
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Quote:
Originally posted by Koffee Brown
I hate these Continentials. I really do. I just can't imagine what I would do if I got a flat in the middle of nowhere, then spent hours and hours trying to muscle the tire back onto the rim!
Which model of Continental are they? what rims are they mounted on?

I feel the exact same way about a pair of kevlar bead Michelin's that I installed a few weeks ago. I thought my thumbs, and tire levers, were going to break trying to install these tires. I dread the day that I'm sitting on the side of the road trying to repair a flat. I'm trying to imagine what it's going to be like getting the tire off. I should practice at home to find out if it's even possible with the tools that I carry.
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Old 06-18-03, 09:52 PM   #25
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Hate to dredge up an old thread... but...

Many people are mentioning "letting air out of the tube right before you finish mounting the tire" and etc. Are you supposed to have air in the tube while you are mounting the tire? I feel dumb... :-)
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