Doubts on Carbon Longevity
#76
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This response will be similar to the last time I responded to this question. I'm not aware of any CF frames from major brands that have acquired a reputation for failure that would injure the rider. Trek has had problems with bottom bracket housing coming loose thus rendering the frame useless. I understand this is more common on their MTBs. But if you are the original owner, they will replace the frame. As for other materials, bonded frames from the 80's had their share of problems and it's still not advisable to spread the 126mm dropouts to 130 to upgrade one of those frames.
The only other frame material where I know there have been major failures after long periods of time is steel. There are a number of threads over on the C&V about someone's steel frame giving up due to rust after 20 or 30 years and thousands of miles of service. I've never had this happen to me and my Nishiki Ariel MTB is still in service, still taking a pounding over non-paved trails. Of course you can prevent many steel frame failures by using frame saver.
The only other frame material where I know there have been major failures after long periods of time is steel. There are a number of threads over on the C&V about someone's steel frame giving up due to rust after 20 or 30 years and thousands of miles of service. I've never had this happen to me and my Nishiki Ariel MTB is still in service, still taking a pounding over non-paved trails. Of course you can prevent many steel frame failures by using frame saver.
#77
cars get crashed sometimes. Cars are dangerous. We shouldn't drive cars.
#78
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From: Santa Barbara, CA
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#80
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#82
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From: Santa Barbara, CA
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For most of this season I've been using some old Bontrager bars I had laying around after I broke my [carbon] 3T Ergosum bars. I bought new [aluminum] ones but have been too lazy to swap them on until I need to replace my bar tape again...
As far as the OP's question, I destroyed an aluminum frame in a crash, but I've crashed my carbon TCR countless times during the 25k-30k miles I rode it before replacing it with my Tarmac. Rode that Tarmac for a season and replaced with a Tarmac SL2 which is in it's second season, and has probably 20k-25k miles on it as well.
As far as the OP's question, I destroyed an aluminum frame in a crash, but I've crashed my carbon TCR countless times during the 25k-30k miles I rode it before replacing it with my Tarmac. Rode that Tarmac for a season and replaced with a Tarmac SL2 which is in it's second season, and has probably 20k-25k miles on it as well.
#83
#85
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#86
Some CF frames will last just fine even with a lot of abuse. I have an 1999 Trek 5000 OCLV that I've taken up and down fire roads around here and other places plenty of times, and it's holding up just fine. I've been through a couple of bottom brackets, a few headsets, a few sets of wheels, and the cranks are perceptibly worn in spots from rubbing my shoes. The frame is holding up just fine. A guy at work who parks his bike near mine rides an old lugged-tube style Trek CF bike (3300?) that he bought used. His is much older than mine and is in good shape as well.
I've also broken a couple of steel frames racing, and seen a few more steel frames broken racing. It used to be that you could get tubes replaced in a steel frame pretty cheaply, but there are fewer and fewer framebuilders around to do it. I've seen CF bikes go down hard in races and come back up fine (the look 496 and 596 track bikes, in particular), and others disintegrate (a couple of BMC track machines). I've crashed my Giant TCR track frame pretty hard and it's fine-- a couple of chips out of the clearcoat that were easily filled. I crashed into the back of my Specialized Langster Pro at full speed in a madison (aluminum, it belonged to someone else at the time) and it's fine, too. I use it as a TT frame so I don't have to change setups. I think at this point all my steel frames mostly just hang on the wall.
I've also broken a couple of steel frames racing, and seen a few more steel frames broken racing. It used to be that you could get tubes replaced in a steel frame pretty cheaply, but there are fewer and fewer framebuilders around to do it. I've seen CF bikes go down hard in races and come back up fine (the look 496 and 596 track bikes, in particular), and others disintegrate (a couple of BMC track machines). I've crashed my Giant TCR track frame pretty hard and it's fine-- a couple of chips out of the clearcoat that were easily filled. I crashed into the back of my Specialized Langster Pro at full speed in a madison (aluminum, it belonged to someone else at the time) and it's fine, too. I use it as a TT frame so I don't have to change setups. I think at this point all my steel frames mostly just hang on the wall.
#87
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Height is not the most important thing in sizing a frame. Sizes can vary wildly for the same height depending on other measurements.
#88
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From: Minneapolis, MN
I think what you mean, or at least what I think, is that there are other very important measurements that can make or break your comfort on the frame as well. Having to large of a drop from the saddle to handlebars, to long of a top tube, etc etc can make a bike really uncomfortable to ride despite being the correct vertical size.
#89
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All the people that say "I'm x tall and I ride a bike that is y, and you are x tall also, so that bike that is z is too big/small for you" are doing it wrong.
#90
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From: Minneapolis, MN
Aaaaah. Well - I was wrong, in that case I pretty much agree with you. :-D Height can give you rough ballbark (if you're 6"2 and riding a 52cm frame it's nearly certainly to small for you), but height and inseam is a lot better. I think?
#91
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Inseam and torso (which effectively combine to give height)
#92
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From: In the foothills of Los Angeles County
If you like Italian 2 wheeled machines and want to spend the dough, look at a Colnago. They make the steel frame in 65cm.
https://www.wrenchscience.com/road/fr...-X+Light+-2010
I'm heavier than you and I have over 20K miles on a Gunnar steel frame which cost $700 back in 06. You can get them custom sized, as well.
Cheaper still is Soma. Steel and you can get the right size, once you figure that part out.
In carbon, some Ridley models come in big sizes with tall head tubes.
https://www.wrenchscience.com/road/fr...-X+Light+-2010
I'm heavier than you and I have over 20K miles on a Gunnar steel frame which cost $700 back in 06. You can get them custom sized, as well.
Cheaper still is Soma. Steel and you can get the right size, once you figure that part out.
In carbon, some Ridley models come in big sizes with tall head tubes.
#93
So, here is my question for the riders who would like to contribute: can a CF frame last 6-10 years if treated properly under normal riding conditions (not racing, not in the rain, avoiding pot holes and rough roads, but still putting in 100-150 miles per week) and stored in doors? I live in TX and so I ride in the heat and sun. I never wreck. I have in the past but now I don't put myself in the position to wreck. So.... will it last? Will the Bianchi Infinito go the distance? Coast to Coast.... hardy har har.
Carbon bike owners don't buy carbon bikes for the longevity of it. Owners of carbon want stiff performance for climbing and/or sprinting doubled with a smooth ride.
You sound more like a recreational rider and I imagine in Texas your not hitting any cat 1 climbs very often. I think you should reconsider Ti. It sounds more suitable for you since you want longevity coupled with a nice ride. Check out the Habenero's as others have suggested and also the Ti frame over a PBK.com. Both bikes I have riden and was very much impressed. I do not think you will be dissapointed in Ti unless you plan on racing seriously in the future and in that case longevity of a frame isn't as important as performance.
#94
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#96
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#97
#98
I don't think I was. I mean you have guys who genuinely need to stiffness of a carbon bike for racing and you have those who just want to look like a pro. For someone who is not racing does it really make much of a difference whether they are riding carbon, Al or Ti...nah. 90% of people on carbon bikes I would imagine aren't demanding out of it what it is built to do. The guys who use carbon for what it is made to do are sponsored so arent concerned with longevity.
#99
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From: Austin, Texas
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In the past four years I have become faster and now sprinting is something that appeals to me. I am sure glad I bought that CF bike.
My next bike will be Ti not because it is stronger but because it is different from what I already have.
#100
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