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#11
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New cyclist puts on new tire and it looks funny....
Frank Leake wrote:
Got my new front tire and just put it on but it doesn't look right. I ordered a 26 X 1.50, same that was on it before, but the area around the stem doesn't seat all the way. Try as I did, it just wouldn't go down all the way. See picture. http://imgplace.com/image/view/30480...e0bc6a503b3715 Any advise... I also got a 26 X 1 3/4 tire just in case the rim was for this kind of tire. You got the Loopy Lou's! I did that once and didn't notice, 'twas a very odd sensation cycling on it. Advice: This is common with most inner tubes. The way to do avoid the problem is to push the valve stem up into the tire after mounting it so that it can descend with its attachment pad curved to fit between tire casing walls instead of having the tire crimping the tube at either side and sitting on top of the reinforcement. That crimp can cause a puncture in a short distance. Presta valves are slenderer with a thinner attachment pad making them are easier to install. Jobst Brandt |
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#12
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New cyclist puts on new tire and it looks funny...----GOTIT...THANKS!
On Jun 13, 11:13*am, Dan O wrote:
The idea is that the already mounted bead is free to move down into the center of the rim, offering more slack than if the valve stem was in the way. Then it's in the way when the tire is the tightest. True, there is a thicker area in the tube around the valve, which might resist pinching with tire levers a little better, but it's pretty small. FWIW, Park Tools "help" site starts with the valve, too. So it goes in straight, is their point. I like "straight" OK, but my main thing, learned 30-odd years ago when I started using Presta valves on "narrow high pressure clinchers", was the discovery ("field operations") that the Presta valve wouldn't take much abuse, compared to the old Schrader valves, IRT poking/pulling/moving around after they were mounted and didn't go on quite right-- especially poking and pulling. So, I made the valve happy by setting it in the tire with a little air pressure (pump, not mouth even though you can with Presta!) the same or very close to the way it would be when fully inflated-- including a straight valve, of course. Which helps when the valve stem is just about long enough to work with a deep(er)-section modern rim. Although I do carry a couple of extenders along with the camp stove and three days' rations in the seatbag. --D-y |
#13
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New cyclist puts on new tire and it looks funny...----GOT
"Twitchell" wrote in message
... I'm a 63 year old newbie at this with artificial hips....mistakes are expected. That doesn't mean you aren't going to catch heck from everyone for them..... |
#15
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New cyclist puts on new tire and it looks funny....
Frank Leake wrote:
Got my new front tire and just put it on but it doesn't look right. I ordered a 26 X 1.50, same that was on it before, but the area around the stem doesn't seat all the way. Try as I did, it just wouldn't go down all the way. See picture. http://imgplace.com/image/view/30480...e0bc6a503b3715 Any advise... I also got a 26 X 1 3/4 tire just in case the rim was for this kind of tire. You got the Loopy Lou's! I did that once and didn't notice, 'twas a very odd sensation cycling on it. Advice: This is common with most inner tubes. The way to do avoid the problem is to push the valve stem up into the tire after mounting it so that it can descend with its attachment pad curved to fit between tire casing walls instead of having the tire crimping the tube at either side and sitting on top of the reinforcement. That crimp can cause a puncture in a short distance. Presta valves are slenderer with a thinner attachment pad making them are easier to install. True, but it isn't hard to get the same effect away from the valve. That is not a common problem except with tubes that are too large in cross section. The effect you showed will not seat by itself because the tube is under the tire bead and there is no force trying to extract it. As I said, that is a pinch flat in the making and will chafe through with use. I've never had it at the valve, cos I'm anal with valve seating, then I work around the tyre, inflate and fit. Then I think "This can't be right!". Seen other people do it as well. The last time it happened the tyre seated itself after about 5 miles. The only way to "never have it at the valve" is to push the valve into the mounted tire so that it is above the narrow section between the tire beads and then let it descend to its proper position. It is all rubber and can form into that space. Bit of an ad for rim lube or whatever it's called. Not at all. As I said, there is no force trying to pull the tube out from under the tire bead so lubricant won't help. Develop a better routine for tire mounting. Jobst Brandt |
#16
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New cyclist puts on new tire and it looks funny....
"A Muzi" wrote in message ... A mist of spray wax can help seat recalcitrant tires (car shops use soapy water which also works). -- Andrew Muzi www.yellowjersey.org/ Open every day since 1 April, 1971 ** Posted from http://www.teranews.com ** I always enjoy reading discussions like this to check on my own practices. I've never used any sort of tire fitting lubricant on bicycle tires myself, mainly through fear of contaminating the rubber with something that might perish it, or having a tire that will slip on the rim. Though I'm not sure if bicycle tires can slip around the rim the way offroad motorcycle tyres will. What exactly is this spray wax? What's the brand name and what else is it used for? Digressing a little, I've been putting off mounting a pair of Schwalbe Marathon Plus's on my new 26" Velocity rimmed wheels because I've heard all about how recalcitrant they can be. When I finally achieved the requisite Zen-like state of calm and attempted it, it was a huge anticlimax. The things practically fell on by themselves and for the first time ever, I did not need a little help from a tire lever for the last six inches of bead. It seemed to me that the Schwalbes are so fat and stiff that I was able to get a good double handful of the tire and rotate it away from me to pop that last bit of bead over the edge. Or maybe I was just lucky. Peter H. |
#17
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New cyclist puts on new tire and it looks funny....
"A Muzi" wrote
A mist of spray wax can help seat recalcitrant tires (car shops use soapy water which also works). Peter Howard wrote: I always enjoy reading discussions like this to check on my own practices. I've never used any sort of tire fitting lubricant on bicycle tires myself, mainly through fear of contaminating the rubber with something that might perish it, or having a tire that will slip on the rim. Though I'm not sure if bicycle tires can slip around the rim the way offroad motorcycle tyres will. What exactly is this spray wax? What's the brand name and what else is it used for? Digressing a little, I've been putting off mounting a pair of Schwalbe Marathon Plus's on my new 26" Velocity rimmed wheels because I've heard all about how recalcitrant they can be. When I finally achieved the requisite Zen-like state of calm and attempted it, it was a huge anticlimax. The things practically fell on by themselves and for the first time ever, I did not need a little help from a tire lever for the last six inches of bead. It seemed to me that the Schwalbes are so fat and stiff that I was able to get a good double handful of the tire and rotate it away from me to pop that last bit of bead over the edge. Or maybe I was just lucky. Pledge. Especially on over/under sized or rusty steel rims -- Andrew Muzi www.yellowjersey.org/ Open every day since 1 April, 1971 ** Posted from http://www.teranews.com ** |
#18
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New cyclist puts on new tire and it looks funny....
On Jun 14, 10:02 am, A Muzi wrote:
"A Muzi" wrote A mist of spray wax can help seat recalcitrant tires (car shops use soapy water which also works). Peter Howard wrote: I always enjoy reading discussions like this to check on my own practices. I've never used any sort of tire fitting lubricant on bicycle tires myself, mainly through fear of contaminating the rubber with something that might perish it, or having a tire that will slip on the rim. Though I'm not sure if bicycle tires can slip around the rim the way offroad motorcycle tyres will. What exactly is this spray wax? What's the brand name and what else is it used for? Digressing a little, I've been putting off mounting a pair of Schwalbe Marathon Plus's on my new 26" Velocity rimmed wheels because I've heard all about how recalcitrant they can be. When I finally achieved the requisite Zen-like state of calm and attempted it, it was a huge anticlimax. The things practically fell on by themselves and for the first time ever, I did not need a little help from a tire lever for the last six inches of bead. It seemed to me that the Schwalbes are so fat and stiff that I was able to get a good double handful of the tire and rotate it away from me to pop that last bit of bead over the edge. Or maybe I was just lucky. Pledge. Especially on over/under sized or rusty steel rims -- Alternately, use those little soaps you've stolen from roadside motels to lube the rim. Good to keep a sliver in your flat kit if you have a tight tire. Nice if you end up far from home with dirty hands as well. |
#19
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New cyclist puts on new tire and it looks funny....
"landotter" wrote in message ... On Jun 14, 10:02 am, A Muzi wrote: "A Muzi" wrote A mist of spray wax can help seat recalcitrant tires (car shops use soapy water which also works). Peter Howard wrote: I always enjoy reading discussions like this to check on my own practices. I've never used any sort of tire fitting lubricant on bicycle tires myself, mainly through fear of contaminating the rubber with something that might perish it, or having a tire that will slip on the rim. Though I'm not sure if bicycle tires can slip around the rim the way offroad motorcycle tyres will. What exactly is this spray wax? What's the brand name and what else is it used for? Digressing a little, I've been putting off mounting a pair of Schwalbe Marathon Plus's on my new 26" Velocity rimmed wheels because I've heard all about how recalcitrant they can be. When I finally achieved the requisite Zen-like state of calm and attempted it, it was a huge anticlimax. The things practically fell on by themselves and for the first time ever, I did not need a little help from a tire lever for the last six inches of bead. It seemed to me that the Schwalbes are so fat and stiff that I was able to get a good double handful of the tire and rotate it away from me to pop that last bit of bead over the edge. Or maybe I was just lucky. Pledge. Especially on over/under sized or rusty steel rims Ah, thank you. We have Pledge in Australia, though only in our huge Home Depot-like local hardware chain that imports all the US made household products such as Simple Green. If it's good enough for you I'll certainly try it. Alternately, use those little soaps you've stolen from roadside motels to lube the rim. Good to keep a sliver in your flat kit if you have a tight tire. Nice if you end up far from home with dirty hands as well. Got little soaps too. I have a million of them that live in my workshop for lubricating handsaws and drill bits. PH |
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