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#21
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repair the tube or toss it
Jobst Brandt writes:
Unfortunately REMA Tip Top spread a bunch of bad information on how to patch a tube, so there are many riders who do not install patches well. http://www.sheldonbrown.com/brandt/patching.html Ben Pfaff wrote: This page gives a number of helpful "do" and "do not" tips, but it would be more valuable if it actually gave a step-by-step procedure. AMuzi writes: here you go: http://www.yellowjersey.org/tubfix.html Ben Pfaff wrote: I don't use tubular tires. Then skip the "cut threads" and "sew seam" parts and all the base tape stuff. You should be faster than in the example shown; the tube is the same part as any 700-23 PV clincher. Find injury Rectify cause (remove glass or whatever) Clean surface Apply cement Wait Apply patch, press firmly install, air, ride away. -- Andrew Muzi www.yellowjersey.org/ Open every day since 1 April, 1971 |
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#22
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repair the tube or toss it
On 26 Gen, 21:10, AMuzi wrote:
here you go:http://www.yellowjersey.org/tubfix.html I have long ago watched how a mechanic did to hold the lips of the casing together while stitching. If you have a vise, clamp them one against the other. Beware. Do not stitch too tight, but just enough. Once the job is finished the two lips will flatten out perfectly aligned. Also, by doing so you do not risk puncturing the tube with your needle. Sergio Pisa |
#23
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repair the tube or toss it
On 26 Gen, 21:10, AMuzi wrote:
here you go:http://www.yellowjersey.org/tubfix.html sergio wrote: I have long ago watched how a mechanic did to hold the lips of the casing together while stitching. If you have a vise, clamp them one against the other. Beware. Do not stitch too tight, but just enough. Once the job is finished the two lips will flatten out perfectly aligned. Also, by doing so you do not risk puncturing the tube with your needle. That's true, as with human skin, where an overly tight stitch leaves a lumpy scar. I have one of those as a helpful reminder. -- Andrew Muzi www.yellowjersey.org/ Open every day since 1 April, 1971 |
#24
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repair the tube or toss it
On Jan 26, 1:27*pm, "Bill Sornson" wrote:
AMuzi wrote: http://www.yellowjersey.org/tubfix.html If I ever need to repair a banana peel, I'm golden! I wonder if he has guides to repairng other fruits |
#25
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repair the tube or toss it
In article ,
Mark Cleary wrote: I had a flat riding the other day and so for this I carry a spare tube it is easier than finding the leak. To find a leak on the road at times can be a problem so I simply put a new tube in to save the problem and of course check the tire. Well I get home and see about fixing the old tube but frankly with patches and the trouble is it just about as easy to replace the tube and be done. My patches can hold but sometimes it takes work. I am lazy. I am I being to lazy or do you mostly fix the tube assuming it can be? Keep several spare tubes, carry two spares on the road. Find the puncture and mark it when you get home. You should have located it and the cause on the road before installing the new tube. Put the punctured tube in with the others. When the pile builds up, have a sit down and patch them all. -- Michael Press |
#26
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repair the tube or toss it
On 26 Jan, 21:49, sergio wrote:
On 26 Gen, 21:10, AMuzi wrote: here you go:http://www.yellowjersey.org/tubfix.html I have long ago watched how a mechanic did to hold the lips of the casing together while stitching. If you have a vise, clamp them one against the other. Beware. Do not stitch too tight, but just enough. Once the job is finished the two lips will flatten out perfectly aligned. Also, by doing so you do not risk puncturing the tube with your needle. Sergio Pisa i THINK IT IS PROBABLY WORTHWHILE MAKING A SIMPLE CLAMP to go behind the stitch line. I tend only to ride in the dry, so my time between punctures can be quite long and I forget to leave the spoon handle in to keep poking the tube away when stitching. So each year on average I put the awl through the tube with about four stitches to go at most. I think there should be something available for leather workers. A large "Bulldog" clip might be easier to get hold of. it'll slip my mind and I'll probably make the same mistake again. |
#27
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repair the tube or toss it
thirty-six wrote:
On 26 Jan, 20:10, Dan O wrote: On Jan 25, 5:18 pm, Mark Cleary wrote: I had a flat riding the other day and so for this I carry a spare tube it is easier than finding the leak. To find a leak on the road at times can be a problem... I should have mentioned that - for me, anyway - it's very, very important to at least try and find the leak before replacing the tube. (Almost always suffices to inflate the bare tube and pass it through your hands, feeling and listening for the leak. Squirt a little water on it and look for spitting if necessary.) This helps you correlate and identify the exact cause, which is usually still stuck in the tire. Most punctures occur in the wet. When there is still air in the tyre ride through an area of road which is covered with water but has next to no depth, ride dead slow and the tyre will sound as the puncture is in the water. The road needs to be quiet. Repair the puncture without removing the wheel or tyre. Quick. This is maybe the answer I was riding and it was wet with some light mist. I usually never ride in the rain and the whole reason for this thread was I went all summer about 1600 miles since 0709 with no flats on my bike. I have the original tires and tube. So naturally I am out in January cold and even some light snow and then I get a flat. Not in good weather but or course in the worst situation. In fact this is the 1st flat I ever had that happen out on a real training type ride. I have no problems with patching the tubes but it does take a bit of skill and work. I would rather change out the tube while on the ride and patch later at home. HOw often do you have flats on road bikes in dry weather and decent pavement? I suppose it could happen all the time but I am guessing under these conditions not as much as other types of riding. Do you think the wet weather was my problem? I noticed the tire had a small hole from some sharp object that was the cause of the tire going out. My tires have about 1500 miles and looked fine but the middle is worn pretty flat. There were no noticeable problems from the outside just pretty flat in the middle of the tire. I did change tires because I wanted to see how these Vredestein Tri Comps will ride. I ran my finger all along the tire on the inside and it still feels like there is plenty of rubber on the tire but worn flat in the middle. Now the kicker of the story is I was riding with a huge tailwind doing some 1.5 mile pick ups getting the speed up to about 35 mph. The tire did not blow out and it was the rear tire but it does make one think about the situation. Finally the spare tube I carry did not have a long enough valve stem I need 48mm stems an this was 32 and would not work. So here I am freezing in the middle of the country with a bike I am going to have to carry home. Lucky I am really a runner so I can run home with the bike but I had to be a 4 pm Mass and it was 3pm. Good thing for cell phones made it with 5 minutes to spare. It was a long story but what do you think about my tires and the flat middle are they gone? The small hole from the puncture I think will be ok but would have to pump it up and see how it reacts. -- Deacon Mark Cleary Epiphany Roman Catholic Church |
#28
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repair the tube or toss it
Mark Cleary wrote:
[...] Do you think the wet weather was my problem?[...] Try cutting dry rubber with a utility knife or razor. Repeat with water as a cutting lubricant. -- Tom Sherman - 42.435731,-83.985007 |
#29
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repair the tube or toss it
On 27 Jan, 03:49, Mark Cleary wrote:
thirty-six wrote: Most punctures occur in the wet. * When there is still air in the tyre ride through an area of road which is covered with water but has next to no depth, ride dead slow and the tyre will sound as the puncture is in the water. *The road needs to be quiet. * Repair the puncture without removing the wheel or tyre. *Quick. This is maybe the answer I was riding and it was wet with some light mist. I usually never ride in the rain I try not to myself. and the whole reason for this thread was I went all summer about 1600 miles since 0709 with no flats on my bike. I have the original tires and tube. So naturally I am out in January cold and even some light snow and then I get a flat. Not in good weather but or course in the worst situation. In fact this is the 1st flat I ever had that happen out on a real training type ride. I have no problems with patching the tubes but it does take a bit of skill and work. I would rather change out the tube while on the ride and patch later at home. That would entail more work. Aim to patch with the wheel in place. Only when you are unable to identify the location of the leak in reasonable time should you swap tubes. HOw often do you have flats on road bikes in dry weather and decent pavement? If the tyre rubber is relatively intact (no holes to the casing) and all splinters etc removed from the tread then tyre punctures from the road probably dont ever happen in the dry (drawing pins excepted). To keep an intact tread you must glue up the holes. I suppose it could happen all the time but I am guessing under these conditions not as much as other types of riding. Do you think the wet weather was my problem? Riding over flint or glass will puncture a thin treaded tyre in the wet quite easily. The fitting of tyre skimmers will help save you from this occurance. I noticed the tire had a small hole from some sharp object that was the cause of the tire going out. My tires have about 1500 miles and looked fine but the middle is worn pretty flat. That'll be a narrow tyre run at excessive pressure. A larger radius cross section will not suffer so much. There were no noticeable problems from the outside just pretty flat in the middle of the tire. I did change tires because I wanted to see how these Vredestein Tri Comps will ride. I ran my finger all along the tire on the inside and it still feels like there is plenty of rubber on the tire but worn flat in the middle. Now the kicker of the story is I was riding with a huge tailwind doing some 1.5 mile pick ups getting the speed up to about 35 mph. The tire did not blow out and it was the rear tire but it does make one think about the situation. If the effects of a puncture on handling worry you, then tubular tyres offer greater security. Finally the spare tube I carry did not have a long enough valve stem I need 48mm stems an this was 32 and would not work. You do make cycling hard for yourself. Shallow section rims run easier and are not fussy about valve stem length. So here I am freezing in the middle of the country with a bike I am going to have to carry home. Lucky I am really a runner so I can run home with the bike but I had to be a 4 pm Mass and it was 3pm. As long as the tyre is fat enough (ho ho) you can ride on the wheel with it flat, just dont hit and bumps and take the corners slow. Good thing for cell phones made it with 5 minutes to spare. your saviour. It was a long story but what do you think about my tires and the flat middle are they gone? The small hole from the puncture I think will be ok but would have to pump it up and see how it reacts. Repair the tread, and casing if necessary. Keep riding until the tread starts breaking up or has worn through to the casing. As the tread gets thinner, use another wheel (with larger section and lower tyre pressure) for the rainy days. |
#30
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repair the tube or toss it
Jobst Brandt wrote:
Tom Sherman wrote: Do you think the wet weather was my problem? Try cutting dry rubber with a utility knife or razor. Repeat with water as a cutting lubricant. Most folks don't see water as a lubricant. Huh? Surely most folks reconize that wet roads are more slippery than dry roads? -- Tad McClellan email: perl -le "print scalar reverse qq/moc.liamg\100cm.j.dat/" |
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