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Re: How no-warning carbon wheel failure wiped out top pro cycling coach

Posted: Sat Jun 15, 2019 12:13 pm
by Mep
Karvalo wrote:
AJS914 wrote:
Wed Jun 12, 2019 3:00 pm
The wheel failed. Why try to blame the rider's memory?
Because the article specifically states he doesn't remember the crash?

It depends if he was riding with someone else, really. If he was and they saw it, fine. If he was on his own there's no basis for saying it was a no warning failure, because he doesn't know what happened.
He was indeed riding with 2 other riders from his training group.

Re: How no-warning carbon wheel failure wiped out top pro cycling coach

Posted: Sat Jun 15, 2019 12:59 pm
by AJS914
Karvalo wrote:
Sat Jun 15, 2019 6:53 am
AJS914 wrote:
Wed Jun 12, 2019 3:00 pm
The wheel failed. Why try to blame the rider's memory?
Because the article specifically states he doesn't remember the crash?

It depends if he was riding with someone else, really. If he was and they saw it, fine. If he was on his own there's no basis for saying it was a no warning failure, because he doesn't know what happened.

I just think it's interesting that people rush to judge the rider. Nobody rushes to judge a flimsey piece of carbon hand-laid up in an asian factory with low wage labor.

Maybe we are seeing a 1 in a million failure because it's a high profile person.

Re: How no-warning carbon wheel failure wiped out top pro cycling coach

Posted: Sat Jun 15, 2019 12:59 pm
by Weenie

Re: How no-warning carbon wheel failure wiped out top pro cycling coach

Posted: Sat Jun 15, 2019 6:23 pm
by Karvalo
AJS914 wrote:
Sat Jun 15, 2019 12:59 pm
I just think it's interesting that people rush to judge the rider.
I didn't see anyone judging the rider. The guy that said maybe he'd created a false memory of what happened isn't judging him, he was simply stating a possibility - something that absolutely does happen when people hit their heads really hard. I don't see any connotation of blame.
Nobody rushes to judge a flimsey piece of carbon hand-laid up in an asian factory with low wage labor.
There are many posts in this thread blaming the piece of carbon fibre. Closer to everybody than nobody, I'd say!

Re: How no-warning carbon wheel failure wiped out top pro cycling coach

Posted: Sat Jun 15, 2019 8:00 pm
by TobinHatesYou
Besides kgt and his ulterior motives, who else is really blaming the rim? If it failed while JRA, I'd chalk it up to a defect and QC. If it hit a pothole, then I'd think about blaming the rim for being so light.

Re: How no-warning carbon wheel failure wiped out top pro cycling coach

Posted: Sat Jun 15, 2019 8:10 pm
by Calnago
Have to agree... anything can fail, from the “best” to the “worst”. It’s the failure rate of a large sample that is probably more important. And any example of anything can be found on the internet these days. So it all has to be put in perspective.

Re: How no-warning carbon wheel failure wiped out top pro cycling coach

Posted: Sat Jun 15, 2019 8:54 pm
by flying
For myself......I think the take away is if you want to ride carbon wheels it is on
you to keep an eye on things regardless of brand

Meaning... it is you that need to take the extra time after rides to inspect lighter equipment
for any signs of failure
That if you hit a decent pothole again on you to inspect etc etc

(disclaimer:I know you cannot inspect for hidden faults)

While not carbon I remember riders of street & superbikes taking
Marchesini Magnesium forged wheels to X-ray after a jolt to check for hairline fractures etc
Yes not carbon but example of riders following up on their cutting edge equipment for their own safety

Re: How no-warning carbon wheel failure wiped out top pro cycling coach

Posted: Sun Jun 16, 2019 10:24 am
by kgt
TobinHatesYou wrote:
Sat Jun 15, 2019 8:00 pm
Besides kgt and his ulterior motives, who else is really blaming the rim? If it failed while JRA, I'd chalk it up to a defect and QC. If it hit a pothole, then I'd think about blaming the rim for being so light.
I did not blame the rim. I don't know what happened and I don't care. What I wrote (read it again) is that Roval wheels are not such a high quality product as some may think. They are just ok. Campagnolo Bora, yes, this is a high quality product.

Re: How no-warning carbon wheel failure wiped out top pro cycling coach

Posted: Sun Jun 16, 2019 12:48 pm
by Wookski
This is a very odd story, seems unusual that a rim would fail catastrophicly for no apparent reason. There have been comments relating to weight- these aren’t light wheels. They would be built to accomodate most of the population from a weight/ durability perspective.

I have a set of ax lightness 760g climbing wheels that I regularly use- the rims are around 190g (at least 1/2 the weight of the rovals). I have hit all manner of unsignalled potholes and bumps in the road, no visible signs of damage.

Re: How no-warning carbon wheel failure wiped out top pro cycling coach

Posted: Sun Jun 16, 2019 9:08 pm
by bm0p700f
The failure wont be no warning. Possibly at some point the rider has hit a hole and cracked the rim. The rider had not noticed that it went out of true and then ot fails. There will have been warning bit the warning was ignored or not noticed. The rider being a coach means nothing
This is a post without context and no conclusions can be drawn apart from the wheel failed.

Re: How no-warning carbon wheel failure wiped out top pro cycling coach

Posted: Sun Jun 16, 2019 9:15 pm
by bm0p700f
when using the term quality it is important to define what you mean otherwise the word becomes meaningless. In what way is a Bora a higher quality wheel than a roval. Then which each stat8 evidence is required otherwise its opinion.

Re: How no-warning carbon wheel failure wiped out top pro cycling coach

Posted: Sun Jun 16, 2019 9:53 pm
by jasjas
Considering carbon rims are used extrnsively in cyclocross and the cobbled classics, with no such failures (not that i ve seen or heard of) i wont be losing sleep on whether my wheels will fail.
Carbon is used extensively in the bike, m.c and car industries, the failure rate is beyond tiny.

We just don't know what happened.

Re: How no-warning carbon wheel failure wiped out top pro cycling coach

Posted: Mon Jun 17, 2019 1:54 am
by commendatore
jasjas wrote:Considering carbon rims are used extrnsively in cyclocross and the cobbled classics, with no such failures (not that i ve seen or heard of) i wont be losing sleep on whether my wheels will fail.
Carbon is used extensively in the bike, m.c and car industries, the failure rate is beyond tiny.

We just don't know what happened.
Well they definitely break in cyclocross, although I’ve no experience on cobbles. Every broken carbon cx rim I’ve experienced or seen the aftermath of has been relatively benign, often without a flat tire.

Re: How no-warning carbon wheel failure wiped out top pro cycling coach

Posted: Mon Jun 17, 2019 3:05 am
by TobinHatesYou
jasjas wrote:
Sun Jun 16, 2019 9:53 pm
Considering carbon rims are used extrnsively in cyclocross and the cobbled classics, with no such failures (not that i ve seen or heard of) i wont be losing sleep on whether my wheels will fail.
Carbon is used extensively in the bike, m.c and car industries, the failure rate is beyond tiny.

We just don't know what happened.

Because presumably this particular rim had a defect that QC failed to or couldn’t detect. It’s as good a speculative reason as any.

Re: How no-warning carbon wheel failure wiped out top pro cycling coach

Posted: Mon Jun 17, 2019 8:55 am
by robeambro
bm0p700f wrote:
Sun Jun 16, 2019 9:15 pm
when using the term quality it is important to define what you mean otherwise the word becomes meaningless. In what way is a Bora a higher quality wheel than a roval. Then which each stat8 evidence is required otherwise its opinion.
Didn't you know, if something is made by Look/Time/Campagnolo/LW or any other elitist/heritage brand, then it's

a) beautiful according to objective taste and thus superior
b) far better quality than anything else

all by default

Re: How no-warning carbon wheel failure wiped out top pro cycling coach

Posted: Mon Jun 17, 2019 9:15 am
by ichobi
And of course not made in China you forgot that!

Sent from my Pixel 2 XL using Tapatalk


Re: How no-warning carbon wheel failure wiped out top pro cycling coach

Posted: Mon Jun 17, 2019 9:15 am
by Weenie