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#132
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Flat repair
On Thu, 16 Aug 2018 15:01:21 -0700 (PDT), wrote:
On Wednesday, August 15, 2018 at 12:49:35 PM UTC-7, John B. Slocomb wrote: As a Sailor (live aboard for more then 10 years) I might repair a sail with needles and thread but string is what you tie up Christmas presents with. I also lived aboard for a decade. I also worked on a lot of sails. I also did long distance racing on large sailboats. I'm a life member of the second oldest yacht club on San Francisco bay. And we always called it Sailmakers Yarn or String. Perhaps they have different terms in Outer Mongolia. Thread is for darning the holes in your socks. Strange that. I can only assume that Californians are really different. In the sail making trade "yarn" is the usual term for the stuff that the sail is woven from. http://www.uksailmakers.com/news/201...erforming-yarn http://www.uksailmakers.com/encyclop...-1-sail-cloth/ http://www.sanders-sails.co.uk/materials.html String, in reference to sails, means a totally different thing. See: https://www.sail-world.com/Australia...?source=google Sailmaking thread is what the industry calls the stuff you sew sails with. https://www.sailmakerssupply.com/cat...ad-and-needles And finally, stockings are darned with thread, or yarn in the case of heavy "boot socks". But then, you really don't know do you. You just make it all up as you go along. As they say in Outer Mongolia, a "Bull **** Boy". |
#133
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Flat repair
On Thu, 16 Aug 2018 23:02:39 -0000 (UTC), Roger Merriman
wrote: wrote: On Thursday, August 16, 2018 at 1:25:54 PM UTC+2, John B. Slocomb wrote: On Thu, 16 Aug 2018 02:40:52 -0700 (PDT), wrote: On Thursday, August 16, 2018 at 10:02:24 AM UTC+2, John B. Slocomb wrote: On Wed, 15 Aug 2018 23:18:27 -0700 (PDT), wrote: On Thursday, August 16, 2018 at 2:16:32 AM UTC+2, AMuzi wrote: On 8/15/2018 6:02 PM, Frank Krygowski wrote: On 8/15/2018 1:39 PM, wrote: On Wednesday, August 15, 2018 at 12:26:14 AM UTC-7, news18 wrote: On 14/08/18 08:48, wrote: Obviously you like carrying around two tubes, a patch kit, two CO2 cartridges and a filler and a mini-pump because it seems romantic to you. Speaking of weight, just how heavier are these tubeless systems compared to the old tyre and tube system. You are perfectly free to feel that the same technology used on every other rubber tired vehicle in the world is not suited to bicycles but if you're going to argue, don't use inadequate responses like "lock you in to their products" or "testing procedures are only for very narrow test conditions." when this isn't the case at all. It is far easier to test bicycle tire performance than those of a motorcycles. +++ How many of these "every other rubber tyred vehcicles" are not driven by an ICE or similar power plant. P.S. you can leave out shopping trolleys. . Why are you arguing this? Tubeless tires are missing the weight of a tube. What's more, because the sealant is so reliable you can use lighter racing-style tires rather than armored tires such as the Gatorskins or the others of similar construction. The flat tests I presented earlier was a guy riding Continental 4000's - a racing tire that has minimal rolling resistance in the tests. I don't understand what you want us to do, Tom. I've got six personal bikes plus a tandem. Oh, plus another 1930s antique stored in the garage attic. They have five different wheel sizes. Surely you don't want me to run out and convert them all to tubeless? I have no current plans to buy another bike. If I start down that path, I might look at the issue. But I'm not seeing a compelling advantage. Right now, my main issue is learning how to repair them if there is a problem, because I do get recruited to help fix bike problems. I'm not looking forward to dealing with the goop. If it were possible to make a proper tubeless bcycle tire with out goop, we'd all ride them. -- Andrew Muzi www.yellowjersey.org/ Open every day since 1 April, 1971 Right. Goop is the reason I not even consider tubeless. Up to the last tire test in TOUR magazine the best tubeless tires had a higher RR compared to the best clincher tires. Now they are on par. They are a bit heavier and harder to mount. That would be all manageable for me but dealing with the goop not. Lou But from reading posts here it seemed like the anti-flat goop was main argument for using tubeless. Without goop I think the chance of a pinchflat is much lower so you can ride with lower pressures for traction reasons or comfort. That is an advantage riding off road on a cross bike or MTB. Pinchflats on a roadbike is a no issue for me. My flats on the roadbike are almost exlusively caused by small glass pieces or chips of rocks. For that you need the goop to make the tubeless tire self sealant. Lou Why the furor about tubeless and no flats. After all they have been making goop to inject into tire tubes and making them self sealing for about 30 years now. Strange that no one seems to be using that although it is considerably cheaper - about 2.00 a wheel. Why you ask me? Carl Fogel (how is he BTW) used that green stuff and I didn't know anyone who patched more flats than him. I don't think that green goop works for pinch flats. Tubeless does by default; no tube to pinch. For road bikes pinch flats aren't a problem at least not for me. Off road with a crossbike with 32-35 mm wide tires it is because you want to run them at low pressure for traction. If I gonna try tubeless it will be on my crossbike but without the goop. Lou Inner tubes with sealant, seem to be a bit marmite, some folks love them, other find they simply don’t work well, clearly they can pinch flat, equally they don’t seal all penetrating ones either. Either way doesn’t seem to work as well as tubeless with the sealant. Roger Merriman I keep reading reference to"pinch flats", but are pinch flats really such a problem to the road rider? If memory serves I've had one pinch flat in all the years I've been riding and that was because I didn't check the tire pressure before I started. |
#134
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Flat repair
On 8/16/2018 6:02 PM, Roger Merriman wrote:
wrote: On Thursday, August 16, 2018 at 1:25:54 PM UTC+2, John B. Slocomb wrote: On Thu, 16 Aug 2018 02:40:52 -0700 (PDT), wrote: On Thursday, August 16, 2018 at 10:02:24 AM UTC+2, John B. Slocomb wrote: On Wed, 15 Aug 2018 23:18:27 -0700 (PDT), wrote: On Thursday, August 16, 2018 at 2:16:32 AM UTC+2, AMuzi wrote: On 8/15/2018 6:02 PM, Frank Krygowski wrote: On 8/15/2018 1:39 PM, wrote: On Wednesday, August 15, 2018 at 12:26:14 AM UTC-7, news18 wrote: On 14/08/18 08:48, wrote: Obviously you like carrying around two tubes, a patch kit, two CO2 cartridges and a filler and a mini-pump because it seems romantic to you. Speaking of weight, just how heavier are these tubeless systems compared to the old tyre and tube system. You are perfectly free to feel that the same technology used on every other rubber tired vehicle in the world is not suited to bicycles but if you're going to argue, don't use inadequate responses like "lock you in to their products" or "testing procedures are only for very narrow test conditions." when this isn't the case at all. It is far easier to test bicycle tire performance than those of a motorcycles. +++ How many of these "every other rubber tyred vehcicles" are not driven by an ICE or similar power plant. P.S. you can leave out shopping trolleys. . Why are you arguing this? Tubeless tires are missing the weight of a tube. What's more, because the sealant is so reliable you can use lighter racing-style tires rather than armored tires such as the Gatorskins or the others of similar construction. The flat tests I presented earlier was a guy riding Continental 4000's - a racing tire that has minimal rolling resistance in the tests. I don't understand what you want us to do, Tom. I've got six personal bikes plus a tandem. Oh, plus another 1930s antique stored in the garage attic. They have five different wheel sizes. Surely you don't want me to run out and convert them all to tubeless? I have no current plans to buy another bike. If I start down that path, I might look at the issue. But I'm not seeing a compelling advantage. Right now, my main issue is learning how to repair them if there is a problem, because I do get recruited to help fix bike problems. I'm not looking forward to dealing with the goop. If it were possible to make a proper tubeless bcycle tire with out goop, we'd all ride them. -- Andrew Muzi www.yellowjersey.org/ Open every day since 1 April, 1971 Right. Goop is the reason I not even consider tubeless. Up to the last tire test in TOUR magazine the best tubeless tires had a higher RR compared to the best clincher tires. Now they are on par. They are a bit heavier and harder to mount. That would be all manageable for me but dealing with the goop not. Lou But from reading posts here it seemed like the anti-flat goop was main argument for using tubeless. Without goop I think the chance of a pinchflat is much lower so you can ride with lower pressures for traction reasons or comfort. That is an advantage riding off road on a cross bike or MTB. Pinchflats on a roadbike is a no issue for me. My flats on the roadbike are almost exlusively caused by small glass pieces or chips of rocks. For that you need the goop to make the tubeless tire self sealant. Lou Why the furor about tubeless and no flats. After all they have been making goop to inject into tire tubes and making them self sealing for about 30 years now. Strange that no one seems to be using that although it is considerably cheaper - about 2.00 a wheel. Why you ask me? Carl Fogel (how is he BTW) used that green stuff and I didn't know anyone who patched more flats than him. I don't think that green goop works for pinch flats. Tubeless does by default; no tube to pinch. For road bikes pinch flats aren't a problem at least not for me. Off road with a crossbike with 32-35 mm wide tires it is because you want to run them at low pressure for traction. If I gonna try tubeless it will be on my crossbike but without the goop. Lou Inner tubes with sealant, seem to be a bit marmite, some folks love them, other find they simply don’t work well, clearly they can pinch flat, equally they don’t seal all penetrating ones either. Either way doesn’t seem to work as well as tubeless with the sealant. Roger Merriman Oh, right. Sealant then. For various values of 'work' maybe. http://forums.roadbikereview.com/att...racetracy2.jpg https://i.ytimg.com/vi/O_StqLLpAVI/maxresdefault.jpg http://basquemtb.basquemtb.netdna-cd...ain-bike-9.jpg https://mountainbikingzane.files.wor.../09/burp-2.jpg Yeah, sealant. That oughta do it. Sure. -- Andrew Muzi www.yellowjersey.org/ Open every day since 1 April, 1971 |
#135
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Flat repair
On 17/08/18 07:50, wrote:
Well, I can't argue that people want to ride what they want to ride. I just find it curious that they complain about flats and then won't change over to a tubeless that doesn't get flats. If tubeless don't get flats, why are there inventions to try to stop tubeless from going flat? https://www.pinkbike.com/news/downhi...irst-look.html -- JS |
#136
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Flat repair
On 8/16/2018 5:50 PM, wrote:
On Wednesday, August 15, 2018 at 12:09:35 PM UTC-7, AMuzi wrote: On 8/15/2018 12:39 PM, wrote: On Wednesday, August 15, 2018 at 12:26:14 AM UTC-7, news18 wrote: On 14/08/18 08:48, wrote: Obviously you like carrying around two tubes, a patch kit, two CO2 cartridges and a filler and a mini-pump because it seems romantic to you. Speaking of weight, just how heavier are these tubeless systems compared to the old tyre and tube system. You are perfectly free to feel that the same technology used on every other rubber tired vehicle in the world is not suited to bicycles but if you're going to argue, don't use inadequate responses like "lock you in to their products" or "testing procedures are only for very narrow test conditions." when this isn't the case at all. It is far easier to test bicycle tire performance than those of a motorcycles. +++ How many of these "every other rubber tyred vehcicles" are not driven by an ICE or similar power plant. P.S. you can leave out shopping trolleys. . Why are you arguing this? Tubeless tires are missing the weight of a tube. What's more, because the sealant is so reliable you can use lighter racing-style tires rather than armored tires such as the Gatorskins or the others of similar construction. The flat tests I presented earlier was a guy riding Continental 4000's - a racing tire that has minimal rolling resistance in the tests. People like tubeless for some applications where they make sense. Other people gave up on them in other applications. I don't feel strongly either way but they are certainly no panacea. Regarding weight, at least for road sizes, you're using a heavier rim liner and a heavier valve assembly plus 55~60 grams of latex to omit a 60~65 gram tube. There may be a weight savings but it can't be significant. People like what they like because they like it. That's fine, and argument enough. I don't see a compelling reason to change, certainly not from 300g tubulars. YMMV, and in your particular case it does. p.s. I drove a wire-wheeled car, the last 8 years with the latest hi-zoot Pirellis and matching tubes. Worked fine. Now that I'm a grownup, I like pressed steel wheels with tubeless, which are lighter. -- Andrew Muzi www.yellowjersey.org/ Open every day since 1 April, 1971 Well, I can't argue that people want to ride what they want to ride. I just find it curious that they complain about flats and then won't change over to a tubeless that doesn't get flats. The way I complain about flats is by saying "I got a flat." After that, I may say "So I fixed it." My last flat was on a club ride on our tandem, about two weeks ago. Someone said "Good thing it was Frank who got the flat. It won't take him long to fix it." -- - Frank Krygowski --- This email has been checked for viruses by Avast antivirus software. https://www.avast.com/antivirus |
#137
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Flat repair
On 8/16/2018 8:48 PM, John B. Slocomb wrote:
On Thu, 16 Aug 2018 23:02:39 -0000 (UTC), Roger Merriman wrote: wrote: On Thursday, August 16, 2018 at 1:25:54 PM UTC+2, John B. Slocomb wrote: On Thu, 16 Aug 2018 02:40:52 -0700 (PDT), wrote: On Thursday, August 16, 2018 at 10:02:24 AM UTC+2, John B. Slocomb wrote: On Wed, 15 Aug 2018 23:18:27 -0700 (PDT), wrote: On Thursday, August 16, 2018 at 2:16:32 AM UTC+2, AMuzi wrote: On 8/15/2018 6:02 PM, Frank Krygowski wrote: On 8/15/2018 1:39 PM, wrote: On Wednesday, August 15, 2018 at 12:26:14 AM UTC-7, news18 wrote: On 14/08/18 08:48, wrote: Obviously you like carrying around two tubes, a patch kit, two CO2 cartridges and a filler and a mini-pump because it seems romantic to you. Speaking of weight, just how heavier are these tubeless systems compared to the old tyre and tube system. You are perfectly free to feel that the same technology used on every other rubber tired vehicle in the world is not suited to bicycles but if you're going to argue, don't use inadequate responses like "lock you in to their products" or "testing procedures are only for very narrow test conditions." when this isn't the case at all. It is far easier to test bicycle tire performance than those of a motorcycles. +++ How many of these "every other rubber tyred vehcicles" are not driven by an ICE or similar power plant. P.S. you can leave out shopping trolleys. . Why are you arguing this? Tubeless tires are missing the weight of a tube. What's more, because the sealant is so reliable you can use lighter racing-style tires rather than armored tires such as the Gatorskins or the others of similar construction. The flat tests I presented earlier was a guy riding Continental 4000's - a racing tire that has minimal rolling resistance in the tests. I don't understand what you want us to do, Tom. I've got six personal bikes plus a tandem. Oh, plus another 1930s antique stored in the garage attic. They have five different wheel sizes. Surely you don't want me to run out and convert them all to tubeless? I have no current plans to buy another bike. If I start down that path, I might look at the issue. But I'm not seeing a compelling advantage. Right now, my main issue is learning how to repair them if there is a problem, because I do get recruited to help fix bike problems. I'm not looking forward to dealing with the goop. If it were possible to make a proper tubeless bcycle tire with out goop, we'd all ride them. -- Andrew Muzi www.yellowjersey.org/ Open every day since 1 April, 1971 Right. Goop is the reason I not even consider tubeless. Up to the last tire test in TOUR magazine the best tubeless tires had a higher RR compared to the best clincher tires. Now they are on par. They are a bit heavier and harder to mount. That would be all manageable for me but dealing with the goop not. Lou But from reading posts here it seemed like the anti-flat goop was main argument for using tubeless. Without goop I think the chance of a pinchflat is much lower so you can ride with lower pressures for traction reasons or comfort. That is an advantage riding off road on a cross bike or MTB. Pinchflats on a roadbike is a no issue for me. My flats on the roadbike are almost exlusively caused by small glass pieces or chips of rocks. For that you need the goop to make the tubeless tire self sealant. Lou Why the furor about tubeless and no flats. After all they have been making goop to inject into tire tubes and making them self sealing for about 30 years now. Strange that no one seems to be using that although it is considerably cheaper - about 2.00 a wheel. Why you ask me? Carl Fogel (how is he BTW) used that green stuff and I didn't know anyone who patched more flats than him. I don't think that green goop works for pinch flats. Tubeless does by default; no tube to pinch. For road bikes pinch flats aren't a problem at least not for me. Off road with a crossbike with 32-35 mm wide tires it is because you want to run them at low pressure for traction. If I gonna try tubeless it will be on my crossbike but without the goop. Lou Inner tubes with sealant, seem to be a bit marmite, some folks love them, other find they simply don’t work well, clearly they can pinch flat, equally they don’t seal all penetrating ones either. Either way doesn’t seem to work as well as tubeless with the sealant. Roger Merriman I keep reading reference to"pinch flats", but are pinch flats really such a problem to the road rider? If memory serves I've had one pinch flat in all the years I've been riding and that was because I didn't check the tire pressure before I started. Are pinch flats such a problem? Well, not much, but occasionally. My last two flats were. The one on the tandem came from a pothole on a fast downhill in dappled sunlight. I never saw it until a quarter second before I hit it. It caused a slow leak, noticed only when the bike felt squirrelly about five miles later. IIRC, that's the only pinch flat we've ever had on the tandem. The other pinch flat was on my utility bike. They're in the process of paving a highway that I cross coming home with groceries. The road's been scarfed, leaving a very sharp 1" "curb" up to the level of the unscarfed side street. I suppose my tire pressure might have been a little low, and I know the $100 worth of groceries didn't help matters. But no, I usually get very few pinch flats. I tend to watch the road surface a lot, especially on the tandem. The stoker prefers warnings before bumps. She gets to look at scenery. I get to look for potholes. -- - Frank Krygowski --- This email has been checked for viruses by Avast antivirus software. https://www.avast.com/antivirus |
#138
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Flat repair
On Friday, August 17, 2018 at 4:51:56 AM UTC+2, Frank Krygowski wrote:
On 8/16/2018 5:50 PM, wrote: On Wednesday, August 15, 2018 at 12:09:35 PM UTC-7, AMuzi wrote: On 8/15/2018 12:39 PM, wrote: On Wednesday, August 15, 2018 at 12:26:14 AM UTC-7, news18 wrote: On 14/08/18 08:48, wrote: Obviously you like carrying around two tubes, a patch kit, two CO2 cartridges and a filler and a mini-pump because it seems romantic to you. Speaking of weight, just how heavier are these tubeless systems compared to the old tyre and tube system. You are perfectly free to feel that the same technology used on every other rubber tired vehicle in the world is not suited to bicycles but if you're going to argue, don't use inadequate responses like "lock you in to their products" or "testing procedures are only for very narrow test conditions.." when this isn't the case at all. It is far easier to test bicycle tire performance than those of a motorcycles. +++ How many of these "every other rubber tyred vehcicles" are not driven by an ICE or similar power plant. P.S. you can leave out shopping trolleys. . Why are you arguing this? Tubeless tires are missing the weight of a tube. What's more, because the sealant is so reliable you can use lighter racing-style tires rather than armored tires such as the Gatorskins or the others of similar construction. The flat tests I presented earlier was a guy riding Continental 4000's - a racing tire that has minimal rolling resistance in the tests. People like tubeless for some applications where they make sense. Other people gave up on them in other applications. I don't feel strongly either way but they are certainly no panacea. Regarding weight, at least for road sizes, you're using a heavier rim liner and a heavier valve assembly plus 55~60 grams of latex to omit a 60~65 gram tube. There may be a weight savings but it can't be significant. People like what they like because they like it. That's fine, and argument enough. I don't see a compelling reason to change, certainly not from 300g tubulars. YMMV, and in your particular case it does. p.s. I drove a wire-wheeled car, the last 8 years with the latest hi-zoot Pirellis and matching tubes. Worked fine. Now that I'm a grownup, I like pressed steel wheels with tubeless, which are lighter. -- Andrew Muzi www.yellowjersey.org/ Open every day since 1 April, 1971 Well, I can't argue that people want to ride what they want to ride. I just find it curious that they complain about flats and then won't change over to a tubeless that doesn't get flats. The way I complain about flats is by saying "I got a flat." After that, I may say "So I fixed it." My last flat was on a club ride on our tandem, about two weeks ago. Someone said "Good thing it was Frank who got the flat. It won't take him long to fix it." -- - Frank Krygowski --- This email has been checked for viruses by Avast antivirus software. https://www.avast.com/antivirus Fixing a flat is a social event in our group ;-) https://photos.app.goo.gl/JVnGFRNXqRX4mxmJ6 Lou |
#139
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Flat repair
On Thu, 16 Aug 2018 23:06:56 -0400, Frank Krygowski
wrote: On 8/16/2018 8:48 PM, John B. Slocomb wrote: On Thu, 16 Aug 2018 23:02:39 -0000 (UTC), Roger Merriman wrote: wrote: On Thursday, August 16, 2018 at 1:25:54 PM UTC+2, John B. Slocomb wrote: On Thu, 16 Aug 2018 02:40:52 -0700 (PDT), wrote: On Thursday, August 16, 2018 at 10:02:24 AM UTC+2, John B. Slocomb wrote: On Wed, 15 Aug 2018 23:18:27 -0700 (PDT), wrote: On Thursday, August 16, 2018 at 2:16:32 AM UTC+2, AMuzi wrote: On 8/15/2018 6:02 PM, Frank Krygowski wrote: On 8/15/2018 1:39 PM, wrote: On Wednesday, August 15, 2018 at 12:26:14 AM UTC-7, news18 wrote: On 14/08/18 08:48, wrote: Obviously you like carrying around two tubes, a patch kit, two CO2 cartridges and a filler and a mini-pump because it seems romantic to you. Speaking of weight, just how heavier are these tubeless systems compared to the old tyre and tube system. You are perfectly free to feel that the same technology used on every other rubber tired vehicle in the world is not suited to bicycles but if you're going to argue, don't use inadequate responses like "lock you in to their products" or "testing procedures are only for very narrow test conditions." when this isn't the case at all. It is far easier to test bicycle tire performance than those of a motorcycles. +++ How many of these "every other rubber tyred vehcicles" are not driven by an ICE or similar power plant. P.S. you can leave out shopping trolleys. . Why are you arguing this? Tubeless tires are missing the weight of a tube. What's more, because the sealant is so reliable you can use lighter racing-style tires rather than armored tires such as the Gatorskins or the others of similar construction. The flat tests I presented earlier was a guy riding Continental 4000's - a racing tire that has minimal rolling resistance in the tests. I don't understand what you want us to do, Tom. I've got six personal bikes plus a tandem. Oh, plus another 1930s antique stored in the garage attic. They have five different wheel sizes. Surely you don't want me to run out and convert them all to tubeless? I have no current plans to buy another bike. If I start down that path, I might look at the issue. But I'm not seeing a compelling advantage. Right now, my main issue is learning how to repair them if there is a problem, because I do get recruited to help fix bike problems. I'm not looking forward to dealing with the goop. If it were possible to make a proper tubeless bcycle tire with out goop, we'd all ride them. -- Andrew Muzi www.yellowjersey.org/ Open every day since 1 April, 1971 Right. Goop is the reason I not even consider tubeless. Up to the last tire test in TOUR magazine the best tubeless tires had a higher RR compared to the best clincher tires. Now they are on par. They are a bit heavier and harder to mount. That would be all manageable for me but dealing with the goop not. Lou But from reading posts here it seemed like the anti-flat goop was main argument for using tubeless. Without goop I think the chance of a pinchflat is much lower so you can ride with lower pressures for traction reasons or comfort. That is an advantage riding off road on a cross bike or MTB. Pinchflats on a roadbike is a no issue for me. My flats on the roadbike are almost exlusively caused by small glass pieces or chips of rocks. For that you need the goop to make the tubeless tire self sealant. Lou Why the furor about tubeless and no flats. After all they have been making goop to inject into tire tubes and making them self sealing for about 30 years now. Strange that no one seems to be using that although it is considerably cheaper - about 2.00 a wheel. Why you ask me? Carl Fogel (how is he BTW) used that green stuff and I didn't know anyone who patched more flats than him. I don't think that green goop works for pinch flats. Tubeless does by default; no tube to pinch. For road bikes pinch flats aren't a problem at least not for me. Off road with a crossbike with 32-35 mm wide tires it is because you want to run them at low pressure for traction. If I gonna try tubeless it will be on my crossbike but without the goop. Lou Inner tubes with sealant, seem to be a bit marmite, some folks love them, other find they simply don’t work well, clearly they can pinch flat, equally they don’t seal all penetrating ones either. Either way doesn’t seem to work as well as tubeless with the sealant. Roger Merriman I keep reading reference to"pinch flats", but are pinch flats really such a problem to the road rider? If memory serves I've had one pinch flat in all the years I've been riding and that was because I didn't check the tire pressure before I started. Are pinch flats such a problem? Well, not much, but occasionally. My last two flats were. The one on the tandem came from a pothole on a fast downhill in dappled sunlight. I never saw it until a quarter second before I hit it. It caused a slow leak, noticed only when the bike felt squirrelly about five miles later. IIRC, that's the only pinch flat we've ever had on the tandem. The other pinch flat was on my utility bike. They're in the process of paving a highway that I cross coming home with groceries. The road's been scarfed, leaving a very sharp 1" "curb" up to the level of the unscarfed side street. I suppose my tire pressure might have been a little low, and I know the $100 worth of groceries didn't help matters. But no, I usually get very few pinch flats. I tend to watch the road surface a lot, especially on the tandem. The stoker prefers warnings before bumps. She gets to look at scenery. I get to look for potholes. I suspect that is why I have so few pinch flats. I do watch the road, closely, and might even slow down if I can't avoid something with sharp edges. We don't have many potholes here but we do have a lot of storm drains which range from, oh say 3 ft x 3 ft to 10 ft x 10 ft and most of them, after years of use, repaveing and repaveing don't fit flush and present a nice sharp edge to the oncoming wheel. I slow down. |
#140
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Flat repair
On Friday, August 17, 2018 at 4:38:15 AM UTC-4, John B. Slocomb wrote:
On Thu, 16 Aug 2018 23:06:56 -0400, Frank Krygowski Snipped She gets to look at scenery. I get to look for potholes. I suspect that is why I have so few pinch flats. I do watch the road, closely, and might even slow down if I can't avoid something with sharp edges. We don't have many potholes here but we do have a lot of storm drains which range from, oh say 3 ft x 3 ft to 10 ft x 10 ft and most of them, after years of use, repaveing and repaveing don't fit flush and present a nice sharp edge to the oncoming wheel. I slow down. Heavens to Sweet Betsey! You mean people should reduce speed and ride at a speed that matches the road/trail/path conditions? What a novel concept. VBEG LOL Unfortunately for many other users of those same areas, many bicyclist want to "bomb" along at top speed. When I tour on those old fire/logging/mining roads I keep my speed to what enables me to maintain control of my bicycle and also to see what's on the road/trail up ahead. I'd hate to blow out a tire 40 miles or so from anywhere someone might see me for days. Perhaps because I ride aware of my surroundings and reduce my speed when needed is the reason why I don't get pinch-flats or slice my tires when I tour. I do carry a folding spare tire as a just in case though because what I can ride in a day might take close to a week to walk pushing a loaded bicycle. Other peoples' mileage might and probably does vary. Cheers |
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