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#11
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Post-recall R-Sys wheel failure
"Robert Chung" wrote in message
... Tom Kunich wrote: Steel frames [...] are looking better all the time. Justin's steel Bianchi was a great bike. Steel bends while carbon breaks. Total failure of both frame materials is about the same these days but the steel frame tends to fail in a manner that throws you sideways while carbon failures puts you face first into the ground. Ain't much fun. |
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#12
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Post-recall R-Sys wheel failure
"Mike Jacoubowsky" wrote in message
... That's a severe oversimplification. You can build a very sturdy low-spoke-count (20 front 24 rear) wheel that can last a very long time. I've got a set of Bontrager XXX-Lites that now have 21,000 miles on them and have literally never been touched with a spoke wrench. I hope you've noticed that experienced cyclists ride a great deal differently from riders with less than, say, two years? Experienced cyclists tend to put a whole lot less strain on wheels because they watch where they're going, recognize dangerous bumps that might be hard to see and they also stand on the pedals and use their legs as springs over many bumps that greatly reduces the loadings on wheels. Nevertheless experienced cyclists do miss things and make mistakes. Low spoke count light wheels are a lot less forgiving. The issue is when we try to build stuff as close to the edge as possible, and it's not the material used that's the problem, it's how it's used. Certainly but who is going to buy a heavily built carbon bike when a steel bike of equal strength cost half as much? The problem isn't with the materials, and maybe it's not even the design. Maybe it's people who are willing to shell out $7k+ for a cyclocross rig that can be destroyed in one outing. Maybe the fact that there are customers for that sort of bike has skewed what the industry believes we want (or is appropriate). The real problem is "ultra light". The average rider couldn't tell the difference between an 18 lb bike and a 21 lb bike that would cost half as much. |
#13
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Post-recall R-Sys wheel failure
"P. Chisholm" wrote in message
... On Jun 9, 3:11 pm, "Tom Kunich" cyclintom@yahoo. com wrote: "Robert Chung" wrote in message ... http://www.velonews.com/article/9305...rience---a-pos... This "modern" low spoke count wheels are failing like crazy. Not as bad at that one of course but more and more people are going over the bars. Also carbon frames are failing a lot more often than it's being let on. Steel frames (though my Look and my Colnago are heavily enough built that I don't have to worry about it) and 32 spoke count wheels are looking better all the time. Copy to Jim Beam Wrong newsgroup (and glad you didn't copy the "right" one) --Mike Jacoubowsky Chain Reaction Bicycles www.ChainReaction.com Redwood City & Los Altos, CA USA |
#14
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Post-recall R-Sys wheel failure
"Robert Chung" wrote in message
... Johnny Twelve-Point presented by JFT wrote: On Tue, 9 Jun 2009 12:16:46 -0700, "Robert Chung" wrote: http://www.velonews.com/article/9305...-wheel-failure Yeah, that sounds like rider error. The error of riding wheels with little carbon spokes. Maybe I should have given this the subject line: "Mavic is shocked ... shocked! ... at the news." Perhaps. But one of the most-interesting things about this is that it was in VeloNews, a publication that Mavic advertises in pretty heavily if I recall correctly. --Mike Jacoubowsky Chain Reaction Bicycles www.ChainReaction.com Redwood City & Los Altos, CA USA |
#15
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Post-recall R-Sys wheel failure
"Tom Kunich" cyclintom@yahoo. com wrote in message
m... "Robert Chung" wrote in message ... Tom Kunich wrote: Steel frames [...] are looking better all the time. Justin's steel Bianchi was a great bike. Steel bends while carbon breaks. Total failure of both frame materials is about the same these days but the steel frame tends to fail in a manner that throws you sideways while carbon failures puts you face first into the ground. Ain't much fun. Where is your (or anybody else's) evidence of this? Carbon generally fails *after* the faceplant has already happened. What it does after the rider is already on the ground is kinda irrelevant, don't you think? Where carbon is a problem is in not understanding that it may have been damaged in a previous crash, and the difficulty of finding that damage. And worse, the human-nature thing of not *wanting* to find the damage. You give it a cursory look and say "whew, dodged a bullet!" Instead of considering that it's unlikely your bike was designed to take that sort of impact. With steel, there's less chance of concealed damage, and, ironically because of lower cost in some cases, more incentive to check for damage. Weird, but I see this sort of thing frequently. --Mike Jacoubowsky Chain Reaction Bicycles www.ChainReaction.com Redwood City & Los Altos, CA USA "Tom Kunich" cyclintom@yahoo. com wrote in message m... "Robert Chung" wrote in message ... Tom Kunich wrote: Steel frames [...] are looking better all the time. Justin's steel Bianchi was a great bike. Steel bends while carbon breaks. Total failure of both frame materials is about the same these days but the steel frame tends to fail in a manner that throws you sideways while carbon failures puts you face first into the ground. Ain't much fun. |
#16
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Post-recall R-Sys wheel failure
Tom Kunich wrote:
"Scott" wrote in message ... How do you know that CF frames are failing more frequently than is being reported? Let's just say I know. That's good enough for me! |
#17
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Post-recall R-Sys wheel failure
Mike Jacoubowsky wrote:
Perhaps. But one of the most-interesting things about this is that it was in VeloNews, a publication that Mavic advertises in pretty heavily Dumbass, It happened to the Editor in Chief for Velonews. Think if it'd happened to one of us (same circumstances same witnesses same article) they'd've published it? |
#18
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Post-recall R-Sys wheel failure
Johnny Twelve-Point presented by JFT wrote:
On Tue, 9 Jun 2009 12:16:46 -0700, "Robert Chung" wrote: http://www.velonews.com/article/9305...-wheel-failure Yeah, that sounds like rider error. The error of riding wheels with little carbon spokes. A SS spoke weighs 5-7 grams. I wonder how much weight they saved going with carbon. After all there were 16 of them in that wheel. Bob Schwartz |
#19
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Post-recall R-Sys wheel failure
"Robert Chung" wrote in message
... Mike Jacoubowsky wrote: Perhaps. But one of the most-interesting things about this is that it was in VeloNews, a publication that Mavic advertises in pretty heavily Dumbass, It happened to the Editor in Chief for Velonews. Think if it'd happened to one of us (same circumstances same witnesses same article) they'd've published it? The Editor in Chief, of all people, is made sensitive to the needs of advertisers. More likely to see that sort of thing come out from a less-senior staff member, and then an editor gets in all manner of trouble for allowing it to be printed. My guess is that Mavic made a monumental error in even suggesting the possibility that the rider may have been at fault. That probably set him off. Even if it's possible the rider *was* somehow responsible, that sort of thing has to be handled very carefully when the rider has, well, teeth. And the Editor of a cycling publication has teeth. --Mike Jacoubowsky Chain Reaction Bicycles www.ChainReaction.com Redwood City & Los Altos, CA USA "Robert Chung" wrote in message ... Mike Jacoubowsky wrote: Perhaps. But one of the most-interesting things about this is that it was in VeloNews, a publication that Mavic advertises in pretty heavily Dumbass, It happened to the Editor in Chief for Velonews. Think if it'd happened to one of us (same circumstances same witnesses same article) they'd've published it? |
#20
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Post-recall R-Sys wheel failure
In article , dave a
wrote: Tom Kunich wrote: "Scott" wrote in message ... How do you know that CF frames are failing more frequently than is being reported? Let's just say I know. That's good enough for me! Oh yeah - the classic "Tom Kunich Magic Knowledge" rears its ugly head again. heh... -- tanx, Howard Caught playing safe It's a bored game remove YOUR SHOES to reply, ok? |
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