2manybikes

BTW - I don't believe I have ever seen a tube that is not marked with the size on it. Some have the lettering molded into the black tube,(hard to find sometimes) ..... some have white letters on them. One could bring the old tube when looking for a new one if the valve length is in question. No one needs to guess. Or one could try using a ruler to measure the stem length?

well biked

The new "Schwinn Varsity" comes with 28's as well, I believe. Same exact situation with the "deep" shraeder-drilled rims. Again, there are a lot of these bikes out there, and they need replacement tubes like anything else. And as you noted, the stores where the bikes are purchased don't support them. Someone much wiser than me figured out that it's worth manufacturing replacements, and made them available to bike shops. We stock them, and sell them pretty regularly-

garage sale GT

All right, maybe it was the gmc yukon. I know I saw a blue bike in a walmart with 23s or 25s on deep v, vitesse rims, with 36 spokes!

operator

3 people on this thread think that is the correct length valve to put into that rim. The valve just barely clears the top of the rim. No wonder there are so many bad mechanics out there.

garage sale GT

If it's stupid, and it works, then it isn't stupid.

ChrizzleDizzle6

could somebody give me a website for the tubes that will fit my wheel? i just went out to two bike shops and target and none of them carry the right tubes unfortunately. i bought two myself but they did not fit. so if anyone knows finds the correct tube even if i need an adapter please let me know! thanks again for the advice

sweatforfun

even though the rims are deep, i dont see why a regular valve adapter wouldnt be the simplest solution. it would take up the extra space around the valve hole that the tube comes in contact with. it may cause the end of the presta valve to knock around on the inside of the rim, but that could be taken care of, more or less, by securing the valve nut. maybe two valve adapters, one on each side, secured by the valve nut? probably not the best long term solution, but it would make buying tubes easier and get you back on the road.

operator

Do you know how to read?

I gave you the answer in post #2.

operator

Exactly what I said in post #2. 2 pages back.

PlatyPius

Solutions:

1) Have the bike shop order the tubes. See below.
63278Standard Schrader Valve TubesTUBES SUNLT 700x20-25 (27x1)SV 48mmVALVE
700x20-25 (27x1) • SV • 45mm FL : 849NY : 100AL : 1000IN : 75PA : 100MN : 200TX : 928CO : 98WA : 0FLC : 0CA : 769

2) Buy a 48mm presta valve tube AND a schrader/presta rim adaptor.
3) Buy a bike that isn't so freaking "odd" that no one has tubes in stock for it.
4) If you're tempted to use the short valve schrader tubes like some of the people have recommended.....just poke yourself in the eye or something else equally painful.

crazyed27

Was the valve lenght the issue??? Or did you buy the wrong size tube?

operator

3) It's a walmart bike that retails for < $200 CAd. It's quite popular as are the supercycle SC1800's.

4) Thank you.No professional mechanic would say that's the appropriate valve length tube.

There are a lot of things that are "functional" that are just plain wrong. Functional doesn't mean it's correct. And that picture, is not correct, **** it's not even functional half the time.

crazyed27

And you still have not answered the question....What hazard am I subjecting myself to? By using a short valve?

operator

Good for you, you can pump it up.

The other 50% of the people out there won't be able to. So your advice is wrong. That is the WRONG vavle length for that rim, as PROVEN by your picture. A schreader valve that only clears the rim by that margin is TOO SHORT. I've worked on these bikes, repaired flats for that specific bike many times before. WE can pump it up with our compressor. A customer with a floor pump, or a mini-pump or any other of the billion variations of pumps out there might not be able to. Or at worst they'll try and pull the valve out through the rim for more clearance and create a pinch flat.

That is not the correct length valve, and you telling us that you can pump it up makes no ****ing difference.. Any professional mechanic that lets a bike leave with a flat repair like that is a ****ing moron and doesn't deserve the "professional" part of that title.

I'm not sure how may more different ways I can convey this.

crazyed27

3.The bike was given to him...he did not buy it.


4. And if it works it works, I would rather do it myself and have it not be the exact way a bicycle shop would do it, then take my bike in to the LBS and ripped off...just because I did not buy a LOOK from you.

operator

The only reason LBS exists is to rip you off.

All of my former and current managers have said, "Operator - your job here is to rip off customers" - no more no less.

PlatyPius

I agree.

One thing I have seen happen when someone puts the short stem in there is the stem ripping out of the tube. Why? Because it's too short. They try to get the floor pump head on the stem, but to get it on far enough to push the valve down, they have to yank on the stem; eventually pulling it out of the tube.

Another amusing problem is when the bike sits for a while and the tire gets low. Rider doesn't notice, goes for a ride, comes back, and there isn't a valve stem any longer. Not visible at least. Valve stem is down inside the rim somewhere.... Ever tried letting the air out and putting the valve back through the hole when it's still partially inflated and you can't get to the valve?

Fun.

crazyed27

I guess I am a pumping professional..my hand pump worked like a charm!!!

PlatyPius

Ripped off????

The tube WITH installation is $10. Wow. What a rip off. We are such evil, evil people; what with wanting to actually make money and all. But then, I guess you don't demand a paycheck from your job, right? You're happy to just go in and work for free.....

joejack951

Pop the tube? Wear hearing protection.

crazyed27

Thanks for that, finally a real answer to my question. Next time I buy tube I will keep this in mind.

crazyed27

I don't like or recommend my LBS. That's all I am saying.

crazyed27

You cant even tell me what could go wrong when I asked...I asked it three times...all you could do is go on about how it is the wrong size..blah...blah...and even threw in the metrics. If I asked my bicycle mechanic the same question and he acted like you did on the forum. I would grab my bike and walk out of his shop.

Then I would go to PlatyPius bike shop and give him my business because he can answer my question with real logic.

tonski 

So operator is wrong because someone else answered the question you asked him or do you just want some one to entertain dumb questions? I agree you may be able to pump it up..is that a cap on the stem - sorry but I can't see the 10x10 picture that well - if it is, let's see it without the cap because it definitely look wrong.

10 Wheels

His questions were not dumb ass.... He was asking for legitimate help.