Back by popular demand, the general all-things Road forum!
Moderator: robbosmans
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RedRacer
- Posts: 412
- Joined: Sat Jan 21, 2006 6:13 pm
by RedRacer on Fri Sep 21, 2012 12:18 am
farm_lim wrote:@maverick
sorry for confusing you. yes mr_tim is right. was shifting from 21 (3rd to last) to 23 (2nd to last) when it happened.
@sedluk
rd didnt touch a spoke at all, i wasnt even on the last cog yet and rd didnt get into the wheels as ive said initially. yes, im lucky!
Approx how many miles on this unit when it broke?
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farm_lim
- Posts: 371
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- Location: cebu, philippines/ hong kong
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by farm_lim on Fri Sep 21, 2012 2:03 am
@redracer, 13mos, approx 7000km
got the rd back from the retailer last night. not bad 4day turnaround.
the upper/lower knuckles and parallelogram assembly were replaced.
they installed the existing cages, bolts and dirty pulleys back.
you cant buy fitness, but you can buy advantage.
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ultimobici
- in the industry
- Posts: 4462
- Joined: Sun Nov 21, 2004 2:45 pm
- Location: Trento, Italia
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by ultimobici on Fri Sep 21, 2012 6:34 am
bm0p700f wrote:I had a bloke come in shop with a chorus mech all carbon that gave up in a similar way. I suppose the aluminium cages were more likely to bend before breaking you normally had a bit of warning.
All carbon? It's allloy on Chorus and Record isn't it?
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1spd
- Posts: 175
- Joined: Fri Jun 15, 2012 2:27 pm
- Location: Gaithersburg, Maryland
by 1spd on Mon Sep 24, 2012 2:46 pm
As much as I love the new SR carbon rd, I am happy with my older Record 10spd set up. It may weigh more and not be as blingy but dang if I'm not worried about it snapping on me like that. Now don't get me wrong, if I had the money, I would buy the SR in a heart beat, breaking be damned!
Glad you got it repaired! I'm assuming they warrantied it all for you right?
Cannondale Synapse (alu)...it works
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Powerful Pete
- Moderator
- Posts: 4132
- Joined: Fri Dec 10, 2004 10:22 am
- Location: Lima, Peru and the Washington DC area - it's complicated.
by Powerful Pete on Mon Sep 24, 2012 5:11 pm
I pressed by the speed of the warranty work. Although I would have returned it... clean!
Road bike: Cervelo R3, Campagnolo Chorus/Record mix...
Supercommuter: Jamis Renegade...
Oldie but goodie: De Rosa Professional Slx, Campagnolo C-Record...
And you can call me Macktastik Honey Pete Kicks, thank you.
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sam2msl
- Posts: 5
- Joined: Tue May 06, 2014 3:35 pm
by sam2msl on Tue May 06, 2014 3:50 pm
My rear mech has done exactly the same thing. The derailleur simply sheared off whilst going slowly on a gravel path. Must have been something to do with the vibrations going through the bike because it was not caught in the spokes, rather the fracture occurred whilst changing up. Luckily I pulled over and stopped before the mech went into the rear wheel. Given the thin nature of the material at this point, perhaps this is a design flaw. My mech ia a 2011 version also.
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sam2msl
- Posts: 5
- Joined: Tue May 06, 2014 3:35 pm
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sam2msl
- Posts: 5
- Joined: Tue May 06, 2014 3:35 pm
by sam2msl on Tue May 06, 2014 6:22 pm
Quite understand. My pics are a day old having used the derailleur for three years without fault.
I just wanted to re-iterate that these mechs are prone to failure, not because of incident damage caused by crashes or spoke snagging, but because of an engineering anomaly. Perhaps the carbon-encased spring is vibrating/ expanding and causing the resin to crack over time?
Either way, this is not a time-specific problem.
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gitsome
- Posts: 749
- Joined: Thu Mar 20, 2008 3:03 am
- Location: nyc
by gitsome on Wed May 07, 2014 10:57 pm
Was talking to my mech other day about upgrading to SR11, he said the lifespan is approx 2 years and that is the EXACT place he sad they have lots if problems, either the carbon is badly molded to begin w or it cracks. He think SR11 is a 2-year product, said Record better choice if you are looking for longer life. Also complained of the Ti parts inside (like screws) he said not nearly as durable as steele. This is a very high end place that sees a lot of expensive parts and grupose all day... too bad as I was salivating for Sr11 net year... hmm
My wallet is the lightest thing on my bike.
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gitsome
- Posts: 749
- Joined: Thu Mar 20, 2008 3:03 am
- Location: nyc
by gitsome on Wed May 07, 2014 11:00 pm
PS FWIW Im still on 10sp Record and love it, his advice was lose the Campy fetish next time around...
My wallet is the lightest thing on my bike.
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kode54
- Posts: 3755
- Joined: Tue May 23, 2006 9:39 pm
by kode54 on Wed May 07, 2014 11:51 pm
yes, mine failed as well...slightly lower where it sheared off and dumped into my spokes. my Enve wheels held up, but the rear derailleur hanger tore off as well. lots of carnage.
who repairs them? i still have the broken pieces in a zip lock somewhere.
- Factor Ostro VAM Disc
- Factor LS Disc
- Specialized Aethos Disc
- Sturdy Ti Allroad Disc
- Guru Praemio R Disc