Long stem threaded valve tubes, where are they?
09-24-15, 01:05 PM
#27
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vredestein race lite
https://fairwheelbikes.com/vredestei...be-p-5691.html
the vredestein normal 80mm tubes are smooth
https://fairwheelbikes.com/vredestei...be-p-5691.html
the vredestein normal 80mm tubes are smooth
09-24-15, 02:39 PM
#28
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"The advantage is that it's quicker and easier to get the tube out and tyre off, and you never have to deal with jammed nuts. IME the nut will be wedged unbelievably tight the one time you get a puncture at an inconvenient moment, and you'll end up breaking the valve (if you have pliers) or not being able to get at the hole (if you don't). The problem there is that you do the nut up firmly when the tube is inflated to 100psi, then it goes flat and without the air pressure "firmly" becomes "OMG"."
And the threads kill the pump seal over time.
Last edited by popeye; 09-24-15 at 02:51 PM.
09-24-15, 02:40 PM
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09-24-15, 04:49 PM
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I have not seen that but they can cause the tube to rip as shoota mentioned. They cause more rattles than they fix and they are unnecessary unless the stem is too short to fill at low pressure. It's in the rule "toss your nuts".
"The advantage is that it's quicker and easier to get the tube out and tyre off, and you never have to deal with jammed nuts. IME the nut will be wedged unbelievably tight the one time you get a puncture at an inconvenient moment, and you'll end up breaking the valve (if you have pliers) or not being able to get at the hole (if you don't). The problem there is that you do the nut up firmly when the tube is inflated to 100psi, then it goes flat and without the air pressure "firmly" becomes "OMG"."
And the threads kill the pump seal over time.
"The advantage is that it's quicker and easier to get the tube out and tyre off, and you never have to deal with jammed nuts. IME the nut will be wedged unbelievably tight the one time you get a puncture at an inconvenient moment, and you'll end up breaking the valve (if you have pliers) or not being able to get at the hole (if you don't). The problem there is that you do the nut up firmly when the tube is inflated to 100psi, then it goes flat and without the air pressure "firmly" becomes "OMG"."
And the threads kill the pump seal over time.
09-24-15, 06:00 PM
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09-24-15, 06:49 PM
#32
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I've gone to smooth valve stems years ago. I wasn't fond of playing with my nuts when cycling.
I never have an issue with rattling and the pump head lasts much longer.
Of course this doesn't address the OP's question since the thread has veered off course as usual.
I never have an issue with rattling and the pump head lasts much longer.
Of course this doesn't address the OP's question since the thread has veered off course as usual.
09-24-15, 06:56 PM
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Lockrings are Fredly.
09-24-15, 07:07 PM
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I can't understand the reluctance to use electrical tape. It goes inside the rim and doesn't show so what could be the problem? Oh, and it really works. Even with threaded stems and using the nut many stems/rim combinations are very noisy. The tape fixes it with or without the threads.
09-24-15, 07:08 PM
#35
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I can't understand the reluctance to use electrical tape. It goes inside the rim and doesn't show so what could be the problem? Oh, and it really works. Even with threaded stems and using the nut many stems/rim combinations are very noisy. The tape fixes it with or without the threads.
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09-24-15, 07:12 PM
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You put a piece of tape over the valve hole on the inside of the rim, i.e. on the rim bed. Two or three pieces are even better. Then you use a small Phillips screwdriver to punch a hole in the tape a little smaller than the valve stem diameter. When it is time to install the tube, you push the stem through the hole. Since the hole is too small, you should get a tight fit. And some of the tape is pushed into the hole. Done and done.
You can wrap the stem if you want. That also helps, and it doesn't really look bad.
BTW, BDOP has a clear, molded rubbery grommet that sticks to the inside of the rim and does the same thing. He calls it the Valvinator. He delivers in just a couple of days at most even though he is in Taiwan. You should try those. I had some when I had deep carbon rims. Here is the link:
https://www.bdopcycling.com/ACCESSORIES.asp
You can wrap the stem if you want. That also helps, and it doesn't really look bad.
BTW, BDOP has a clear, molded rubbery grommet that sticks to the inside of the rim and does the same thing. He calls it the Valvinator. He delivers in just a couple of days at most even though he is in Taiwan. You should try those. I had some when I had deep carbon rims. Here is the link:
https://www.bdopcycling.com/ACCESSORIES.asp
Last edited by rpenmanparker; 09-24-15 at 07:17 PM.
09-24-15, 07:15 PM
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You put a piece of tape over the valve hole on the inside of the rim, i.e. on the rim bed. Two or three pieces are even better. Then you use a small Phillips screwdriver to punch a hole in the tape a little smaller than the valve stem diameter. When it is time to install the tube, you push the stem through the hole. Since the hole is too small, you should get a tight fit. Done and done.
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09-24-15, 07:18 PM
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See the rest of what I posted in an edit. The smaller tape hole isolates the stem away from the edge of the rim hole. But I've used a couple wraps of tape on the stem too. No biggie.
09-24-15, 07:21 PM
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09-25-15, 08:06 AM
#43
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Correct me if I'm wrong here but, is the problem with the valve stems and resultant electrical tape "cure" the results of noise being generated by the valve stems/rims?
If so, I suppose its good I'm a bit hard of hearing. I do hear all manner of bike noise over the wind but it's more just a general, uhh, "noise" of the bike, tires, etc. that I can't really define. But mostly I just hear the wind in my ears.
I cannot imagine even hearing much less being able to isolate a valve stem rattling above the wind noise to the extent that it causes irritation.
Maybe I'm missing something.
If so, I suppose its good I'm a bit hard of hearing. I do hear all manner of bike noise over the wind but it's more just a general, uhh, "noise" of the bike, tires, etc. that I can't really define. But mostly I just hear the wind in my ears.
I cannot imagine even hearing much less being able to isolate a valve stem rattling above the wind noise to the extent that it causes irritation.
Maybe I'm missing something.
09-25-15, 09:44 AM
#44
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Correct me if I'm wrong here but, is the problem with the valve stems and resultant electrical tape "cure" the results of noise being generated by the valve stems/rims?
If so, I suppose its good I'm a bit hard of hearing. I do hear all manner of bike noise over the wind but it's more just a general, uhh, "noise" of the bike, tires, etc. that I can't really define. But mostly I just hear the wind in my ears.
I cannot imagine even hearing much less being able to isolate a valve stem rattling above the wind noise to the extent that it causes irritation.
Maybe I'm missing something.
If so, I suppose its good I'm a bit hard of hearing. I do hear all manner of bike noise over the wind but it's more just a general, uhh, "noise" of the bike, tires, etc. that I can't really define. But mostly I just hear the wind in my ears.
I cannot imagine even hearing much less being able to isolate a valve stem rattling above the wind noise to the extent that it causes irritation.
Maybe I'm missing something.
09-25-15, 10:57 AM
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