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inner tubes

Old 06-16-18, 09:41 AM
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artmaker
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inner tubes

WELL GREAT! I have an inner tube question but can't upload photos until I have TEN POSTS HERE********** That's really stupid.
Anyway, good thing I wrote this in a text editor. I'll past what I wrote again. Only NO visuals this time.

second try….
After having my rear wheel rebuilt (bearings finally went after a few thousand miles of ME on it.) Anyway, I asked them to replace the inner tube with one like my old wheel had. VERY thick, heavy duty tube. The thing has outlasted two tires and the bearings.

Well they didn't. First real ride and the tube blew. Split on the INSIDE of it. And no, nothing wrong with the wheel at all. It just gave out.


So… looked at my old tube, copied the name and numbers, ordered a nice sweet two for one deal off ebay, but when they came, these are just as thin as the one that blew. Now ONE of the numbers I copied isn't an exact match. (See photos. >>> Yea well no. Newbies can't post a simple jpg.) But I just assumed that had to do with the tube size, width I mean. I can't find anything that says thickness. Same brand, almost the same numbers, but clearly not as thick. See the photo of the two tubes sandwiched between my fingers. The new ones can be folded over and still aren't as thick as my old one.


So question…. what exactly is that second number? And is it possible I cannot find these tubes that thick anymore? (That one would be hard to believe.)

Last…. can someone point me to inner tubes that ARE as thick as mine?

Meanwhile I'll probably just use mine again. But I would like to have a replacement available. This thing can't last forever.
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Old 06-16-18, 10:11 AM
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Heavier, Thorn Resistant tubes are thicker, in that they have more rubber in them.
I have no problems with mine, maybe you are subjecting them to different issues ?
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Old 06-16-18, 11:15 AM
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Originally Posted by artmaker View Post
WELL GREAT! I have an inner tube question but can't upload photos until I have TEN POSTS HERE********** That's really stupid.
(See photos. >>> Yea well no. Newbies can't post a simple jpg.)
artmaker, welcome to Bike Forums. After finding your post I thought I’d take a minute to explain to you why you can’t post a picture yet. We are by far the largest bicycle themed forum in the world. And therefore we are a ripe target for spammers to attempt to advertise their wares. In an effort to reduce the amount of spam that we have to deal with we have instituted a number of things.

One of which is withholding new forum members from posting pictures or links until they have made 10 posts. That gives us enough time to sort out most of the spammers from the regular forum members. Another measure we had installed is 5 posts in 24 hours limit to new forum members. Once you get past 10 posts both of those restrictions are automatically removed.

Forums want new threads and posts and welcome new forum members. So instead of getting mad and saying things are stupid, maybe just ask why there is a limit. An easy way to get your post count up is to go to our Introductions forum and introduce yourself. Then maybe take a couple of minutes and greet some other new forum members.

Thank you.
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Old 06-16-18, 11:31 AM
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Look at the numbers on the side of your tires. It will be something like 26 X 1.75. Then go to your nearest Walmart and look at their selection of thorn proof tubes and buy one that matches the tire size.

It's obvious you prefer never to fix a flat but there is something to be said for regular tubes. A heavy wheel takes more effort to get going (simple physics) from a stop so you waste energy with heavy wheels. In terms of efficiency it is more effective to remove one pound from the weight of the wheels than from the weight of the rest of the components or frame. I used to refurbish bikes and if I came across a bike with thorn-proof tubes I would throw them away and start over with regular tubes. I wanted the bikes I fixed to be as light and efficient as possible and thorn-proof tubes defeat that.
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Old 06-17-18, 05:33 AM
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Originally Posted by VegasTriker View Post
Look at the numbers on the side of your tires. It will be something like 26 X 1.75. Then go to your nearest Walmart and look at their selection of thorn proof tubes and buy one that matches the tire size.

It's obvious you prefer never to fix a flat but there is something to be said for regular tubes. A heavy wheel takes more effort to get going (simple physics) from a stop so you waste energy with heavy wheels. In terms of efficiency it is more effective to remove one pound from the weight of the wheels than from the weight of the rest of the components or frame. I used to refurbish bikes and if I came across a bike with thorn-proof tubes I would throw them away and start over with regular tubes. I wanted the bikes I fixed to be as light and efficient as possible and thorn-proof tubes defeat that.
For tubes (and tires) rolling resistance is a much bigger factor than weight. I personally use latex tubes that save about 5-6 watts over standard butyl because even when I’m solo I like to be able to go fast. I do have a wheel set up with a thick butyl tube for riding with slower groups and still getting something of a workout, it’s a noticeable difference.

It it seems strange that you are having so much trouble with tubes but if you want thick tubes look for thorn resistant as mentioned, also I think Michelin makes a tube they call ‘airstop’ that is extra thick and as a bonus you don’t have to pump your tires as often.

You could also use the largest tube that you can fit inside the tire so it’s not stretched as much. And of course be sure to check your rim tape to make sure there are no uncovered sharp edges in the rain.

I thonk with any tube tube you will occasionally get a bad one...
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Old 06-17-18, 09:14 AM
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A split in a tube after a novice installs a tube and tire means that the tire was incorrectly installed/incorrectly seated in the rim. (Proof? People who are new to installing tubes and tires frequently complain about having received a defective tube. Bike store employees install hundreds of tubes each year, yet they almost never encounter a defective tube. I worked in bike stores for almost 20 years, and I never came across a defective tube.)

Solution: watch some videos of tubes being installed before you attempt it again yourself.
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Old 06-17-18, 07:27 PM
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You guys don't understand. It's a MOTORIZED bike. SO a few grams or pounds difference really doesn't matter. 4 stroke gas motor… Zoom zoom….
But that means my weight plus the bike is over 400 lbs. I NEED a THICK tube. Already have good mountain tires, and the slime thorn guard (which I also asked the bike shop to move to the new wheel and they didn't do that either.)

It's not like I can't fix a flat. Rode a 12 speed for many decades, to and from work, in all weather in Chicago traffic no less. Fixed many a flat tire on the road. I don't leave without a patch kit and spare tools.
But when a brand new tube splits on the inside, and not from rough spokes (had that happen once) not from being pinched, or folded on inflation or any of the usual mistakes. It just plain gave out. THIS is why I want heavy duty THICK RUBBER tubes. Don't care about the weight. Sure as heck beats fixing a flat (usually in the rain or dark, never fails.) OR PUSHING a bike home ON a flat. Ruining the rim in the process.

But the size of the tube doesn't seem to reflect the thickness. I've been getting some help on one of the motorized bike forums I use. But even there, no one can show me how to know how thick a tube is before buying. The ones I bought off ebay said 48mm. Someone later told me that has to do with the length of the valve. Nothing on my thick tube states how thick it is. Mine doesn't even say heavy duty though it is. Only reason I want to replace it is because it's old. Outlasted my old 2 stroke motor, two tires, and the hub and still holds pressure just fine. I'd like to find a replacement for when it does go. (All rubber products will eventually.) And to know how to FIND a thick one would be nice information to have. Doesn't seem to be printed on the tube or even the packages anymore.

So anyone do mountain biking? Anyone still use THICK HEAVY thorn resistant tubes? Got a source? hit me.

Thanks in advance.
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Old 06-17-18, 08:20 PM
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Art,

Perhaps you can give your LBS (Local Bike Shop) a chance. Tell them you want a thick tube and they may be able to help you out.

Alternatively, searching for "Thorn Resistant Bicycle Tube" on Amazon yielded several results.

Jeff

And no, we did not know it was for a MOTORIZED bike. You failed to mention that in the first post. We are not mind readers...
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Old 06-17-18, 09:01 PM
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Just in case you’ve missed it...

THORN RESISTANT

Pick a brand. Any brand. Fancy brands are thick on the outside part of the tube and thin on the rim side. Put some Slime or AirLock in it, or not. Sounds like you have the rest of the situation under control.


-Kedosto
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Old 06-19-18, 07:43 AM
  #10  
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Sounds like the tube might have been overloaded. The few times I've seen a tube blow like that it was because someone picked a size too small, and after it expanded inside the tire it was close to the bursting point. Add 400 lbs. to it and boom.
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Old 06-19-18, 09:34 AM
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Thick tube or not, the rip is an indication of either running too low an air pressure or incorrect installation. Sure a thicker tube might delay the flat, but it's going to happen.

If you want a thicker tube, then you'll have to look for tubes marketed as thorn resistant or puncture resistant. Not all manufacturers make them and once you get past the numbers that tell you what size tire the tube fits, then any other interpretation of numbers is brand specific.
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Old 06-24-18, 08:07 PM
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Wow lots of posts here. I only just got a notice.
So… some updating… I ordered the exact same brand, same numbers, actually a pair of tubes off ebay. When they came I knew just picking up the package they were not thick. (Yes thorn resistant.) Said heavy duty but they weren't. Seller was very understanding, I sent them back.
Meanwhile, my old tube was fine. Only wanted to replace it because of it's age and the fact I had the wheel off anyway may as well get a new tire and tube.

Bike shops…. yea well, I haven't had much luck finding one. First of all I can't take the bike anywhere. The second they see a motor on it, it's oh nooooo we can't help you. Even when the motor was brand new, never had fuel in it, didn't even have the gas tank on yet…. oh nooooo you can't bring that in here. So I fix things myself or not at all.

But when it came to rear bearings? That's something I never did. Adjusting a few spokes is one thing. Re building a wheel? I'd rather not. Now NO bike shops are close to me but I went to one about 20 miles away. (Closest.)
They said it would be easier to just get a whole new wheel. So ok, I needed a wheel with heavy duty spokes too so this shop owner said he has a "wheel guy" who does this and I could get the same thick spokes, better bearings… so ok fine.
Well I ASKED THEM if they could remove the drive gear and put that on the new wheel for me. They did. I ALSO ASKED THEM to get the extra thorn guard out of my old wheel and put it on the new one, give me a heavy duty tube like the one in my old wheel, and since that tire was pretty warn, find me a tire like it and do that too.

Well…. I should have known when I picked this all up, (and it took them MONTHS to do this.) Anyway I should have known when my old tire was still on the old rim and with pressure in it that they never took it off. I did examine the tire when the tube blew but honestly didn't notice the problem till later. It seemed fine.

So while the thin tubes were being sent back I decided to just put my old one in and go. Didn't see it until I started putting pressure into the thing with my old tube. And the tube started bubbling out the side.
The tire itself was defective. Inch long split right off the bead. You could feel around the bead, it actually got thinner near the point where it separated from the bead. Threads were visible for a good 8 inches around that spot. Just a bad tire.

Now here is where things go south with this bike shop.
When I took the bad tube the store put in to the shop, owner was busy talking to someone, ignored me completely. Kid there offered to just give me my money back and I said fine. All I can expect I guess. I kinda wanted to ask the owner why they didn't put in a heavy tube like I had, or move the thorn guard strip, but I never got a chance.

When I came in with the bad tire, owner wasn't there. The same kid starts to get another tire. I said no, I don't want another of the same thing that was defective. Just a refund, I have a good tire ordered. Well he said it was my fault, never even LOOKED at the tire, but could not refund me. I said I may have had this a little bit, but this was the very first 30 mi ride and it splits? It's a bad tire.
I asked how much that tire was anyway. 18.00. Well there ya go. NOT a good tire, a piece of crap tire. I had already reordered the same tire I had before, they run about 42.00. And I have warn out two of them already. Never had a flat. Little turd of a kid, Saw me getting angry and actually kinda smirking at not giving my money back.

The next day the owner would be in. I figured I'd give him a chance. Well he looked, and did give me my money back but not without making it out to be my fault. Said this was caused by brakes rubbing. Now there is NO WAY!!!!! I told him that. I adjust those brakes myself and know how. Been taking care of my own bike since I was little. Besides brakes rubbing wouldn't that leave some kind of scuff mark? Not just wear the threads inside the rubber to show? And right where the rim is? Not even possible to be brakes rubbing. It doesn't make sense. It's a defective tire. "No, that's brake rubbing… I've been doing this for 30 years." At that point I knew there is NO point in discussing this further. He's an idiot! (I fixed my first flat before this guy was born.) I did point out that I ASKED for a good tire like what I had. Which is more than TWICE what that piece of ¶§§∞ costed. Plus I ASKED for a thick heavy duty tube. And I ASKED for the thorn guard strip to be moved. None were done. So three strikes that were YOUR fault. All he did was mumble brakes rubbed…. yea when I get the time I'm going to slam that shop with 1 star ratings everywhere. And certainly am NEVER going back.
Stupid on their part since I already told them I have a 12 speed rotting in the garage I'd be willing to bring in during their off season and get it totally rebuilt. Off the table now. I'm never going back there again.

So where I stand now, waiting on the new tire. Contacted at least three sellers on ebay asking about tubes and so far no replies.
I won't buy from any seller there who can't bother answering…. so still shopping. If the tire comes before I land a new tube I'll just put my old one in. And I get it, "thorn resistant" is what I need to look for. (Actually the motorized bike forum I'm on too mentioned that already.) But I also need to see pictures of the tube, or at least the box. LIttle square box, means thin small tube.
Seems that term "heavy duty" gets tossed around for nothing. Buyer beware. Especially sight unseen. So not "heavy duty" but "Thorn resistant." Shop for that. Wish I had a descent bike shop closer to me.
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