Strong Carbon Frames?
#102
Senior Member

Joined: Jun 2010
Posts: 2,611
Likes: 478
My comments on this thread:
1. Everyone is talking about super high end bikes when the OP is focused on entry level. Guys: at $2K max, he's not going to be getting a Neil Pryde or a Storck.
2. Carbon is really, really strong. People think you need to baby it which is a complete misconception. Carbon will not crack just from pedalling hard or from a jarring impact. It will crack if you over tighten a bolt or crash. When talking about normal riding around, no frame material is going to be tougher than carbon. Technically infinite fatigue life. They're building airliner fuselages out of the stuff now guys, it's plenty tough.
3. Lots of 240lbs+ guys on this forum. No value judgement, but every single thread seems to be about a guy who's 6'3", 250lbs. I'm in the land of giants. Also, this is not exactly typical cycling physique so it's probably fair to assume that most very high performance ultra light bikes bikes are not going to be engineered with Paul Bunyan in mind. I wouldn't worry about your frame at this size, I'd worry about wheels. You guys need 32 spokes, IMO.
1. Everyone is talking about super high end bikes when the OP is focused on entry level. Guys: at $2K max, he's not going to be getting a Neil Pryde or a Storck.
2. Carbon is really, really strong. People think you need to baby it which is a complete misconception. Carbon will not crack just from pedalling hard or from a jarring impact. It will crack if you over tighten a bolt or crash. When talking about normal riding around, no frame material is going to be tougher than carbon. Technically infinite fatigue life. They're building airliner fuselages out of the stuff now guys, it's plenty tough.
3. Lots of 240lbs+ guys on this forum. No value judgement, but every single thread seems to be about a guy who's 6'3", 250lbs. I'm in the land of giants. Also, this is not exactly typical cycling physique so it's probably fair to assume that most very high performance ultra light bikes bikes are not going to be engineered with Paul Bunyan in mind. I wouldn't worry about your frame at this size, I'd worry about wheels. You guys need 32 spokes, IMO.
Last edited by Hiro11; 02-08-12 at 09:11 AM.
#103
Descends like a rock
Joined: Oct 2010
Posts: 4,034
Likes: 16
From: Fort Worth, TX
Bikes: Scott Foil, Surly Pacer
3. Lots of 240lbs+ guys on this forum. No value judgement, but every single thread seems to be about a guy who's 6'3", 250lbs. I'm in the land of giants. Also, this is not exactly typical cycling physique so it's probably fair to assume that most very high performance ultra light bikes bikes are not going to be engineered with Paul Bunyan in mind. I wouldn't worry about your frame at this size, I'd worry about wheels. You guys need 32 spokes, IMO.
I agree with you about wheels. Frames, even racing frames are so overdesigned, I wouldn't hesitate to buy anything on the market today even at my former weight. While pro racers gernerally arent heavy, they can crank out some serious torque and the frames (and wheels) have to be able to take it.
#104
Senior Member
Joined: May 2011
Posts: 1,288
Likes: 0
From: N Central Illinois
Bikes: 12 Bianchi Oltre VDCM,11 Bianchi Cavaria, 13 Bianchi Cavaria,12 Bianchi infinito, couple vintage Bianchi's and a 1980 alan super record
My comments on this thread:
2. Carbon is really, really strong. People think you need to baby it which is a complete misconception. Carbon will not crack just from pedalling hard or from a jarring impact. It will crack if you over tighten a bolt or crash. When talking about normal riding around, no frame material is going to be tougher than carbon. Technically infinite fatigue life. They're building airliner fuselages out of the stuff now guys, it's plenty tough.
3. Lots of 240lbs+ guys on this forum. No value judgement, but every single thread seems to be about a guy who's 6'3", 250lbs. I'm in the land of giants. Also, this is not exactly typical cycling physique so it's probably fair to assume that most very high performance ultra light bikes bikes are not going to be engineered with Paul Bunyan in mind. I wouldn't worry about your frame at this size, I'd worry about wheels. You guys need 32 spokes, IMO.
2. Carbon is really, really strong. People think you need to baby it which is a complete misconception. Carbon will not crack just from pedalling hard or from a jarring impact. It will crack if you over tighten a bolt or crash. When talking about normal riding around, no frame material is going to be tougher than carbon. Technically infinite fatigue life. They're building airliner fuselages out of the stuff now guys, it's plenty tough.
3. Lots of 240lbs+ guys on this forum. No value judgement, but every single thread seems to be about a guy who's 6'3", 250lbs. I'm in the land of giants. Also, this is not exactly typical cycling physique so it's probably fair to assume that most very high performance ultra light bikes bikes are not going to be engineered with Paul Bunyan in mind. I wouldn't worry about your frame at this size, I'd worry about wheels. You guys need 32 spokes, IMO.
Last edited by triumph.1; 02-08-12 at 10:50 AM.
#105
Retro-guy
Joined: Oct 2006
Posts: 285
Likes: 0
From: Danville, CA
Bikes: 1980 Raleigh Super Record
Yes, there's no doubt that my 20-spoke wheels are the actual "weakest link" of my bike (in dealing with my 240 lbs). (In partial defense, I am 6'5"...
)
That said, I've had no issues with my wheels in two years (Mavic Aksiums), despite only 20 spokes. They stay true, and the only slightly negative thing I've experienced has been a bit of occasional spoke "ping" when I am really mashing it in a low gear, going up a steep hill, which is only partly a weight issue. Granted, they're not the lightest wheels around.... But i can't complain about their ruggedness.
)That said, I've had no issues with my wheels in two years (Mavic Aksiums), despite only 20 spokes. They stay true, and the only slightly negative thing I've experienced has been a bit of occasional spoke "ping" when I am really mashing it in a low gear, going up a steep hill, which is only partly a weight issue. Granted, they're not the lightest wheels around.... But i can't complain about their ruggedness.
#106
Senior Member

Joined: Jun 2010
Posts: 2,611
Likes: 478
Also, I used to weigh 235 (at 5'9" with a 42" waist... sheesh) so I'm certainly not making any derogatory comments about that.
I do reserve the right to perceive the sight of a 5'10" 250lb guy in full Rapha lycra on a 15 pound Cervelo with Zipp 404s as potentially amusing. I have to be honest.
#107
Iconoclast
Joined: Aug 2009
Posts: 3,176
Likes: 2
From: California
Bikes: Colnago Super, Fuji Opus III, Specialized Rockhopper, Specialized Sirrus (road)
I nominate Slim Rider to conduct this test. He seems to be a man of unwavering consistency and objectivity.
#108
Banned
Joined: May 2011
Posts: 5,804
Likes: 0
From: Northern California
Bikes: Raleigh Grand Prix, Giant Innova, Nishiki Sebring, Trek 7.5FX
#109
Senior Member
Joined: May 2011
Posts: 1,288
Likes: 0
From: N Central Illinois
Bikes: 12 Bianchi Oltre VDCM,11 Bianchi Cavaria, 13 Bianchi Cavaria,12 Bianchi infinito, couple vintage Bianchi's and a 1980 alan super record
I was just wondering if someone could start another "should I get a carbon bike" thread before this one dies out or gets locked? Seriously I'd like to know more about the pros and cons of carbon without researching it myself.
#110
Descends like a rock
Joined: Oct 2010
Posts: 4,034
Likes: 16
From: Fort Worth, TX
Bikes: Scott Foil, Surly Pacer
#111
Bike ≠ Car ≠ Ped.

Joined: Jul 2007
Posts: 13,863
Likes: 6
From: Washington, DC
Bikes: Some bikes. Hell, they're all the same, ain't they?
Is it possible to selectively block posts from someone? As in, block [username] whenever they post about [word]?
#112
Nope, if you ignore them you ignore them completely. Well, at least until someone quotes them.
__________________
I may be fat but I'm slow enough to make up for it.
#113
Senior Member
Joined: Jan 2011
Posts: 1,153
Likes: 0
I've told SlimRider many times about the "beat a Madone with a hammer test" that every Trek dealer will do when asked. He apparently still hasn't gone in there and asked.
#114
Speechless
Joined: Jun 2011
Posts: 8,842
Likes: 39
From: Central NY
Bikes: Felt Brougham, Lotus Prestige, Cinelli Xperience,
I'm avail to spend $2k on a bike and I know I'm touching borderline to go with either CF or Alu in that price range. But since I've been reading thus far, CF and Alu frames are not that far apart as in weight. See, you guys DO help! Now tomorrow I'm going to test a Felt F5, CAAD10, Specialized Tarmac/Allez ... So do I test ride a Alu first then CF or vise versa?
In the price range you are at, buy the F5. It is significantly stronger, as in less flexy and better power transfer, than the Tarmac SL2. I have this from some hours spent playing on both bikes on a Tacx Fortius trainer (in case anyone thinks that I am pulling it from my buttox). I would dare say that the Allez is stiffer than the SL2, but have not tested that specifically. I can say that my Nashbar frame gives better power transfer than the Tarmac SL2.
#115
Speechless
Joined: Jun 2011
Posts: 8,842
Likes: 39
From: Central NY
Bikes: Felt Brougham, Lotus Prestige, Cinelli Xperience,
Or buy a Ridley Orion 105 from Glory Cycles. That is a smokin' bike, without looking all roundy round space age modern carbon designed by a third grader after watching a 24 hour Jetson's marathon, while alternating hits of hash and coke.
#117
Yep! However, sometimes this is the price one pays to lower one's 'irritation levels.' My main regret is that a certain 'frequent poster' continues to prey on newbies (especially on another board in these forums), passing off ill-informed (and ill-expressed) opinion as if it were objective fact. But ... so it goes.
#118
Banned
Joined: May 2011
Posts: 5,804
Likes: 0
From: Northern California
Bikes: Raleigh Grand Prix, Giant Innova, Nishiki Sebring, Trek 7.5FX
Let's be real men about it and address one another directly.
Thus far, all I'm hearing is gossip minus fact.
- Slim
Thus far, all I'm hearing is gossip minus fact.
- Slim
#119
Senior Member
Joined: May 2011
Posts: 1,288
Likes: 0
From: N Central Illinois
Bikes: 12 Bianchi Oltre VDCM,11 Bianchi Cavaria, 13 Bianchi Cavaria,12 Bianchi infinito, couple vintage Bianchi's and a 1980 alan super record
I really don't think the op can go wrong with any of the major brands. Just pick a bike from what ever brands you are interested in your price range and simply google reviews for the bike. If you don't know what you want make it simple and pick a few by looks alone and then research. You will get a good idea of what you want from reading on your own. Sometimes reading opinions on a forum confuses the issue more that it helps. Once you go through all of the possible bikes look at the specs and any other points you consider important. If you don't know what's important just read others experiences and certain points will stand out. Look up a dealer near you for whatever bikes you think are interesting, go test ride a few and buy one. That's what I did and I had no clue what to really look for. The bike I bought was/is fantastic for the money and once I rode it for several thousand miles I determined what worked and didn't work and purchased a high end bike based on my new set of wants from riding. The bike I ride now is pretty much ideal for me and after riding it I will build on the experience and my next bike should be even better.
#121
Bike ≠ Car ≠ Ped.

Joined: Jul 2007
Posts: 13,863
Likes: 6
From: Washington, DC
Bikes: Some bikes. Hell, they're all the same, ain't they?
#122
Banned
Joined: May 2011
Posts: 5,804
Likes: 0
From: Northern California
Bikes: Raleigh Grand Prix, Giant Innova, Nishiki Sebring, Trek 7.5FX
Bob Dopolina says:
Yes! Like boxing, wrestling, dueling, debating....
What were you thinking?
...oh, wait...I think we already know what you were thinking!
You mean like manly men doing manly things with other manly men?
What were you thinking?
...oh, wait...I think we already know what you were thinking!
#123
Banned
Joined: May 2011
Posts: 5,804
Likes: 0
From: Northern California
Bikes: Raleigh Grand Prix, Giant Innova, Nishiki Sebring, Trek 7.5FX
Alright BarracksSi,
Just give me a couple examples where I was "typing" without including facts?
Thus far, out of all of my post, I can only remember one. That was recent and is directly related to me not remembering one of Bob Dopolina posts. That's it!
I always try my best to post factual material. Otherwise, why even bother. I always try to be helpful and courteous to those who would extend the same. You of all people have personally witnessed this fact at length with a certain newbie (Zeerith) who was interested in purchasing a Triathlon road bike.
Just give me a couple examples where I was "typing" without including facts?
Thus far, out of all of my post, I can only remember one. That was recent and is directly related to me not remembering one of Bob Dopolina posts. That's it!
I always try my best to post factual material. Otherwise, why even bother. I always try to be helpful and courteous to those who would extend the same. You of all people have personally witnessed this fact at length with a certain newbie (Zeerith) who was interested in purchasing a Triathlon road bike.
Last edited by SlimRider; 02-09-12 at 01:27 AM.
#124
Senior Member
Joined: Jan 2011
Posts: 1,153
Likes: 0
I always try my best to post factual material. Otherwise, why even bother. I always try to be helpful and courteous to those who would extend the same. You of all people have personally witnessed this fact at length with a certain newbie (Zeerith) who was interested in purchasing a Triathlon road bike.
#125
Bike ≠ Car ≠ Ped.

Joined: Jul 2007
Posts: 13,863
Likes: 6
From: Washington, DC
Bikes: Some bikes. Hell, they're all the same, ain't they?
This is why I wanted to "block [SlimRider] whenever he posts about [carbon]". Not every post of his is useless, but these material debates of his are exceptionally tiring.





