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#1
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Repairing a transverse crack in a Columbus SL toptube?
Hi.
I have a mid-1980's vintage Miele road bike with Columbus SL tubing. The toptube has two horizontal openings in it for theentry and exit of the internal rear brake cable housing. Unfortunately the toptube hasdeveloped a crack that runs transversely from the openng at the front end of the forward cable opening and goes almost all the way around the top tube. To replqce that toptube with another Columbus SL one would cost about $275.00 at the only shop around here that's willing to repalce that tube. I have a friend who has a MIG welder. He says he can fill and smooth that crack and the bike would be rideable again. He sayshe'd fill those two holes for the cable housing and that I could runthe cable along the top of the toptube. He took an indepth bicycle mechanic repair course and is cetified. I'd far prefer having the cable routed inside the frame so that I don't have to be bothered with cable clamps when I have to carry the bike. In the opinion of the experts here who do or heve had such work done: Will filling this crack using a MIG welder give a frame that's safe to ride? Can this be done without having to fill the holes where the rear brake cable housing enters and exits? Thanks and cheers |
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#2
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Repairing a transverse crack in a Columbus SL toptube?
Op 24-1-2012 12:39, Sir Ridesalot schreef:
Hi. I have a mid-1980's vintage Miele road bike with Columbus SL tubing. The toptube has two horizontal openings in it for theentry and exit of the internal rear brake cable housing. Unfortunately the toptube hasdeveloped a crack that runs transversely from the openng at the front end of the forward cable opening and goes almost all the way around the top tube. To replqce that toptube with another Columbus SL one would cost about $275.00 at the only shop around here that's willing to repalce that tube. I have a friend who has a MIG welder. He says he can fill and smooth that crack and the bike would be rideable again. He sayshe'd fill those two holes for the cable housing and that I could runthe cable along the top of the toptube. He took an indepth bicycle mechanic repair course and is cetified. I'd far prefer having the cable routed inside the frame so that I don't have to be bothered with cable clamps when I have to carry the bike. In the opinion of the experts here who do or heve had such work done: Will filling this crack using a MIG welder give a frame that's safe to ride? Can this be done without having to fill the holes where the rear brake cable housing enters and exits? Thanks and cheers I'm shocked! A steel frame that breaks? WTF ;-) Fortunately you can ride to the first blacksmith in the middle of nowhere. He can repair your frame so I'm told again and again. Just kidding. If the frame has emotional value replace the whole tube otherwise consider a cheap aluminum replacement. My 2 ct. Lou |
#3
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Repairing a transverse crack in a Columbus SL toptube?
On Jan 24, 11:39*am, Sir Ridesalot wrote:
Hi. I have a mid-1980's vintage Miele road bike with Columbus SL tubing. The toptube has two horizontal openings in it for theentry and exit of the internal rear brake cable housing. Unfortunately the toptube hasdeveloped a crack that runs transversely from the openng at the front end of the forward cable opening and goes almost all the way around the top tube. To replqce that toptube with another Columbus SL one would cost about $275.00 at the only shop around here that's willing to repalce that tube. I have a friend who has a MIG welder. He says he can fill and smooth that crack and the bike would be rideable again. He sayshe'd fill those two holes for the cable housing and that I could runthe cable along the top of the toptube. He *took an indepth bicycle mechanic repair course and is cetified. I'd far prefer having the cable routed inside the frame so that I don't have to be bothered with cable clamps when I have to carry the bike. In the opinion of the experts here who do or heve had such work done: Will filling this crack using a MIG welder give a frame that's safe to ride? Can this be done without having to fill the holes where the rear brake cable housing enters and exits? Thanks and cheers This failure was showing with SL tubes inside 2 years. Get it patched and forget about the internal routing, or get a thicker-walled tube without the ticket price for SL. You've got to go with what you can and I personally find either option I give as acceptable. Your carrying system may have something to do with the failure, it's generally best to stabilise the bike by the heavy gauge seat-pin using nothing more than an inner-tube or toe0strap. |
#4
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Repairing a transverse crack in a Columbus SL toptube?
Sir Ridesalot wrote:
Hi. I have a mid-1980's vintage Miele road bike with Columbus SL tubing. The toptube has two horizontal openings in it for theentry and exit of the internal rear brake cable housing. Unfortunately the toptube hasdeveloped a crack that runs transversely from the openng at the front end of the forward cable opening and goes almost all the way around the top tube. To replqce that toptube with another Columbus SL one would cost about $275.00 at the only shop around here that's willing to repalce that tube. I have a friend who has a MIG welder. He says he can fill and smooth that crack and the bike would be rideable again. He sayshe'd fill those two holes for the cable housing and that I could runthe cable along the top of the toptube. He took an indepth bicycle mechanic repair course and is cetified. I'd far prefer having the cable routed inside the frame so that I don't have to be bothered with cable clamps when I have to carry the bike. In the opinion of the experts here who do or heve had such work done: Will filling this crack using a MIG welder give a frame that's safe to ride? Can this be done without having to fill the holes where the rear brake cable housing enters and exits? Thanks and cheers You should replace the tube. Example: http://www.yellowjersey.org/gth.html A MIG patch is a temporary solution and will almost certainly fail. $275 is a fair price for a lugged tube replacement, neither at the high nor low extreme. -- Andrew Muzi www.yellowjersey.org/ Open every day since 1 April, 1971 |
#5
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Repairing a transverse crack in a Columbus SL toptube?
On Jan 24, 12:56*pm, thirty-six wrote:
On Jan 24, 11:39*am, Sir Ridesalot wrote: Hi. I have a mid-1980's vintage Miele road bike with Columbus SL tubing. The toptube has two horizontal openings in it for theentry and exit of the internal rear brake cable housing. Unfortunately the toptube hasdeveloped a crack that runs transversely from the openng at the front end of the forward cable opening and goes almost all the way around the top tube. To replqce that toptube with another Columbus SL one would cost about $275.00 at the only shop around here that's willing to repalce that tube. I have a friend who has a MIG welder. He says he can fill and smooth that crack and the bike would be rideable again. He sayshe'd fill those two holes for the cable housing and that I could runthe cable along the top of the toptube. He *took an indepth bicycle mechanic repair course and is cetified. I'd far prefer having the cable routed inside the frame so that I don't have to be bothered with cable clamps when I have to carry the bike. In the opinion of the experts here who do or heve had such work done: Will filling this crack using a MIG welder give a frame that's safe to ride? Can this be done without having to fill the holes where the rear brake cable housing enters and exits? Thanks and cheers This failure was showing with SL tubes inside 2 years. *Get it patched and forget about the internal routing, or get a thicker-walled tube without the ticket price for SL. * You've got to go with what you can and I personally find either option I give as acceptable. *Your carrying system may have something to do with the failure, it's generally best to stabilise the bike by the heavy gauge seat-pin using nothing more than an inner-tube or toe0strap. I meant carrying the bike on my shou,lder not a vehicle. How do you stabilize a bike when you're carrying it on your shoulder? I just put the top tube near the seat tube on my shoulder and sometimes hold the front wheel when I'm really hurrying with it. Thanks and cheers |
#6
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Repairing a transverse crack in a Columbus SL toptube?
On Jan 24, 1:52*pm, AMuzi wrote:
Sir Ridesalot wrote: Hi. I have a mid-1980's vintage Miele road bike with Columbus SL tubing. The toptube has two horizontal openings in it for theentry and exit of the internal rear brake cable housing. Unfortunately the toptube hasdeveloped a crack that runs transversely from the openng at the front end of the forward cable opening and goes almost all the way around the top tube. To replqce that toptube with another Columbus SL one would cost about $275.00 at the only shop around here that's willing to repalce that tube. I have a friend who has a MIG welder. He says he can fill and smooth that crack and the bike would be rideable again. He sayshe'd fill those two holes for the cable housing and that I could runthe cable along the top of the toptube. He *took an indepth bicycle mechanic repair course and is cetified. I'd far prefer having the cable routed inside the frame so that I don't have to be bothered with cable clamps when I have to carry the bike. In the opinion of the experts here who do or heve had such work done: Will filling this crack using a MIG welder give a frame that's safe to ride? Can this be done without having to fill the holes where the rear brake cable housing enters and exits? Thanks and cheers You should replace the tube. Example:http://www.yellowjersey.org/gth.html A MIG patch is a temporary solution and will almost certainly fail. $275 is a fair price for a lugged tube replacement, neither at the high nor low extreme. -- Andrew Muzi * www.yellowjersey.org/ * Open every day since 1 April, 1971 Thanks for the advice Andrew. $275.00 to replace a single tube on a steel frame plus the cost of painting it versus about $250.00 or so for a mail order aluminium frame? I believe I'm beginning to see why aluminium frames are so popular. Steel might be repairable but, in my opinion anyway, it's an expensive proposition to do so. I guess I'll just wait and get the top tube replaced when I have the funds for it plus the ability to arrange rides to and from the shopdoing the work. That shop's about 40 miles from me each way. Thanks again and cheers |
#7
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Repairing a transverse crack in a Columbus SL toptube?
On 25/01/12 06:22, Sir Ridesalot wrote:
$275.00 to replace a single tube on a steel frame plus the cost of painting it versus about $250.00 or so for a mail order aluminium frame? I believe I'm beginning to see why aluminium frames are so popular. Steel might be repairable but, in my opinion anyway, it's an expensive proposition to do so. I guess I'll just wait and get the top tube replaced when I have the funds for it plus the ability to arrange rides to and from the shopdoing the work. That shop's about 40 miles from me each way. Thanks again and cheers Where do you find a $250 Al frame? -- JS. |
#8
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Repairing a transverse crack in a Columbus SL toptube?
James wrote:
:On 25/01/12 06:22, Sir Ridesalot wrote: : $275.00 to replace a single tube on a steel frame plus the cost of : painting it versus about $250.00 or so for a mail order aluminium : frame? I believe I'm beginning to see why aluminium frames are so : popular. Steel might be repairable but, in my opinion anyway, it's an : expensive proposition to do so. : : I guess I'll just wait and get the top tube replaced when I have the : funds for it plus the ability to arrange rides to and from the : shopdoing the work. That shop's about 40 miles from me each way. : : Thanks again and cheers :Where do you find a $250 Al frame? That's an expensive aluminum frame. -- sig 44 |
#9
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Repairing a transverse crack in a Columbus SL toptube?
On Jan 24, 7:16*pm, Sir Ridesalot wrote:
On Jan 24, 12:56*pm, thirty-six wrote: On Jan 24, 11:39*am, Sir Ridesalot wrote: Hi. I have a mid-1980's vintage Miele road bike with Columbus SL tubing. The toptube has two horizontal openings in it for theentry and exit of the internal rear brake cable housing. Unfortunately the toptube hasdeveloped a crack that runs transversely from the openng at the front end of the forward cable opening and goes almost all the way around the top tube. To replqce that toptube with another Columbus SL one would cost about $275.00 at the only shop around here that's willing to repalce that tube. I have a friend who has a MIG welder. He says he can fill and smooth that crack and the bike would be rideable again. He sayshe'd fill those two holes for the cable housing and that I could runthe cable along the top of the toptube. He *took an indepth bicycle mechanic repair course and is cetified. I'd far prefer having the cable routed inside the frame so that I don't have to be bothered with cable clamps when I have to carry the bike. In the opinion of the experts here who do or heve had such work done: Will filling this crack using a MIG welder give a frame that's safe to ride? Can this be done without having to fill the holes where the rear brake cable housing enters and exits? Thanks and cheers This failure was showing with SL tubes inside 2 years. *Get it patched and forget about the internal routing, or get a thicker-walled tube without the ticket price for SL. * You've got to go with what you can and I personally find either option I give as acceptable. *Your carrying system may have something to do with the failure, it's generally best to stabilise the bike by the heavy gauge seat-pin using nothing more than an inner-tube or toe0strap. I meant carrying the bike on my shou,lder not a vehicle. How do you stabilize a bike when you're carrying it on your shoulder? I just put the top tube near the seat tube on my shoulder and sometimes hold the front wheel when I'm really hurrying with it. I thought you might have meant that after I sent. The only frame I had a problem with shouldering was one (I still use) that has braze-on cable stops on the underside of the top tube. I carry that bike in hand with the weight on the pedal. |
#10
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Repairing a transverse crack in a Columbus SL toptube?
On Jan 24, 11:38*am, Lou Holtman wrote:
Op 24-1-2012 12:39, Sir Ridesalot schreef: Hi. I have a mid-1980's vintage Miele road bike with Columbus SL tubing. The toptube has two horizontal openings in it for theentry and exit of the internal rear brake cable housing. Unfortunately the toptube hasdeveloped a crack that runs transversely from the openng at the front end of the forward cable opening and goes almost all the way around the top tube. To replqce that toptube with another Columbus SL one would cost about $275.00 at the only shop around here that's willing to repalce that tube. I have a friend who has a MIG welder. He says he can fill and smooth that crack and the bike would be rideable again. He sayshe'd fill those two holes for the cable housing and that I could runthe cable along the top of the toptube. He *took an indepth bicycle mechanic repair course and is cetified. I'd far prefer having the cable routed inside the frame so that I don't have to be bothered with cable clamps when I have to carry the bike. In the opinion of the experts here who do or heve had such work done: Will filling this crack using a MIG welder give a frame that's safe to ride? Can this be done without having to fill the holes where the rear brake cable housing enters and exits? Thanks and cheers I'm shocked! A steel frame that breaks? WTF ;-) Fortunately you can ride to the first blacksmith in the middle of nowhere. He can repair your frame so I'm told again and again. Just kidding. If the frame has emotional value replace the whole tube otherwise consider a cheap aluminum replacement. My 2 ct. Lou Indeed. If you want something for riding. Unlike steel frames of the 80s, most cheap alu frames are well made and straight, if a little utilitarian. If the OP loves teh bike, fix it properly. I wouldn't bother. |
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