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  1. #1
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    Clydesdale needs a bike. Carbon Fiber?

    I'm 6'3" 245lbs and looking for my first road bike. Should I bother looking at carbon frames or do I exceed the weight limit? If you're my size and have a carbon fiber frame, how does it handle compared with other materials? Any info is appreciated. -bds

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    if x=byh then x+1=byn blandin's Avatar
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    I'm 6'1" and weigh 220 lbs. I have full carbon, steel, titanium, aluminum and aluminum w/carbon stays road bikes and have no issues with any of them. If you have a concern, I would check with the manufacturer and see if they have a weight limit, my guess is most won't. However, a recent post said there is a 100KG weight limit on one of the Pedal Force carbon frames, so you will want to look into it to be sure. As far as handling goes, each of my bikes has its own personality and the wheels you use makes a pretty big difference too. Best to test ride and find a bike that handles well for you.
    '00 TiSports Titanium - DA 9 speed------ '01 KHS Flite 800 - DA/Utegra 9 speed mix
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    '05 Serotta Fierte - Utegra 10 speed--..-'07 Pedal Force RS - SRAM Force

  3. #3
    DEADBEEF khuon's Avatar
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    It depends on the design of the make and model. CF can certainly be made into as strong or as weak a frame as any other materials. Many manufacturers do set a weight limit on their carbon frames and this is generally a matter of design. Check with the manufacturer. I know that Aegis frames can easily handle your weight and they also offer a special option for a reinforced "clydesdale weave" which adds another layer of weave to increase rigidity. You might also want to read through this old thread on the same topic.

    As a side note, you will want to pay equal if not more attention to the quality and build of the wheels as that's where heavier riders usually see problems. I'd recommend staying away from most low spoke count wheels and go for beefier rims. Something like Sun Rhynolites with 32H w/two-cross lacing up front and 36H w/three-cross lacing in the back along with high-quality hubs should serve you well.
    1999 K2 OzM 2001 Aegis Aro Svelte OCP Club Member
    "Be liberal in what you accept, and conservative in what you send." -- Jon Postel, RFC1122

  4. #4
    Mooninite shakeNbake's Avatar
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    khoun, you linked to park tools.

    Anyways, I remember a fellow clydesdale with the Motobecane carbon bike, which is mighty sweet.

  5. #5
    cs1
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    Quote Originally Posted by bds50
    I'm 6'3" 245lbs and looking for my first road bike. Should I bother looking at carbon frames or do I exceed the weight limit? If you're my size and have a carbon fiber frame, how does it handle compared with other materials? Any info is appreciated. -bds
    Not to be a smart ass, but a carbon frame will save you maybe a pound or 1 1/2 pounds max overs steel, that's frame less fork. Let's not here all the experts chime in with their measurements in grams either. The point being at 245 you aren't going to notice loosing that extra pound or two. You'll have bragging rights at the rest stops but it isn't going to get you there any faster.

    For what a good carbon frame cost, you could get a custom frame in Reynolds 853. It will be heavier, not much, but custom fit to you. At 6'3" the selection of really nice factory frames is slim. Well, whatever you choose good luck.

    Tim
    1999 Waterford RSE-11, 1995 Waterford 1200, 1989 Specialized Rockhopper Comp
    1989 Raleigh Technium, 1989 Schwinn Traveler, 1986 Specialized Rockhopper
    1984 Specialized Stumpjumper, 1986 Specialized Stumpjumper and just way too many projects to list.

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    Should I bother looking at carbon frames
    sure.

    or do I exceed the weight limit?
    nope. for only $7,095 you can get a custom frame (no fork) from serotta, which will have oversized, super strong tubes made to handle any way you want.


  7. #7
    J E R S E Y S B E S T Jerseysbest's Avatar
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    No idea what your budget is like but I'd bother getting better components before I looked at a carbon frame
    Quote Originally Posted by SingingSabre View Post
    Cheating: a symptom of the problem.

  8. #8
    Know Your Onion! badkarma's Avatar
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    What's your budget?
    We Are Penn State

    2006 Kestrel Talon

  9. #9
    Senior Member big john's Avatar
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    Have you been fitted for frame size? The point cs1 makes is true, you might have trouble finding stock sizes that fit you, regardless of frame material. I'm riding a 63cm Cannondale aluminum frame with carbon fork, and I have been thinking about a new bike. I'm wondering if a Synapse would be good for me, it's full carbon and comes in 63. You could look at Calfee, he'll build anything you want from carbon.

  10. #10
    not as fat as I was Biggziff's Avatar
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    I ride a 5500 full carbon and with the lifetime frame warranty Trek offers I don't worry about being 230 pounds riding carbon. Carbon can give a more plush ride, but that is subjective and differs from frame to frame. Trek told me that unless I'm 300+ not to worry about any of their frames.

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    I'm almost identical to you in weight and height- I test road a Specialized Roubaix and the Specialized Tarmac at several different LBS's. All the salespeople told me that they have riders heavier than me on CF bikes and it's not a problem... but they also told me that these people have the stock wheels as well and have had no problems. But then I read somewhere (I think it was the Specialized brochure) that 220 was the max. weight recommendation for these bikes. I decided to not risk it and bought an aluminum bike and to use the 220 weight limit as incentive to lose weight so I can get eventually get a CF bike. It's not so much about the weight of CF- heck I have 40 spoke velocity deep v's on my bike that weigh a ton! it's just such a great comfortable ride.

  12. #12
    stupid newbie damage24's Avatar
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    I'm 6'4 and about 205 (down from 225 when I started a year ago). I'm riding a Giant TCR C3 with an XL frame and have had no problems. It sometimes looks a bit small with the seatpost jacked way up but my LBS says it's not problem and it rides and feels fine. It's much much smoother than the OCR3 I was riding up until about a month ago and a good five-six pounds lighter.

    Maybe it's just a mental thing but I felt instant improvement from the first time I rode the bike. I've since set personal bests in just about every category.

  13. #13
    n00b! instigator's Avatar
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    Quote Originally Posted by Fat Louie
    I'm almost identical to you in weight and height- I test road a Specialized Roubaix and the Specialized Tarmac at several different LBS's. All the salespeople told me that they have riders heavier than me on CF bikes and it's not a problem... but they also told me that these people have the stock wheels as well and have had no problems. But then I read somewhere (I think it was the Specialized brochure) that 220 was the max. weight recommendation for these bikes. I decided to not risk it and bought an aluminum bike and to use the 220 weight limit as incentive to lose weight so I can get eventually get a CF bike. It's not so much about the weight of CF- heck I have 40 spoke velocity deep v's on my bike that weigh a ton! it's just such a great comfortable ride.

    Same experience here. I am 6'3" 245 and test rode a Specialized Roubaix as well. The frame flexed quite a bit under my weight. The LBS told me it wouldn't but I felt pretty unsecure riding it compared to my AL framd with CF stays.

  14. #14
    Dirt-riding heretic DrPete's Avatar
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    Quote Originally Posted by damage24
    It's much much smoother than the OCR3 I was riding up until about a month ago and a good five-six pounds lighter.
    I'm sorry, did you say five to six POUNDS??? I didn't think the OCR3 was a full-suspension mountain bike...

    You might be a little, um, generous with your weight estimate.
    "Unless he was racing there was no way he could match my speed."

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    No, you do not want to buy a CF bike/frame.
    That would be a huge mistake. I am 6`4" and 235 and CF is way too weak for me and my style. Nobody can produce strong and durable CF frame. Reason for that is technology limitations and the nature of carbon fiber itself. Aging process is much faster for fiber than for aluminum not to mention steel. Fiber absorb great portion of energy input (i am talking about huge heavy and strong riders not about my wife). CF offers a bad trade-off regarding weight.
    If you want to feel forsage do not buy CF. Also, if you want a durable bike do not buy CF.

  16. #16
    not as fat as I was Biggziff's Avatar
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    Quote Originally Posted by Broz
    No, you do not want to buy a CF bike/frame.
    That would be a huge mistake. I am 6`4" and 235 and CF is way too weak for me and my style. Nobody can produce strong and durable CF frame. Reason for that is technology limitations and the nature of carbon fiber itself. Aging process is much faster for fiber than for aluminum not to mention steel. Fiber absorb great portion of energy input (i am talking about huge heavy and strong riders not about my wife). CF offers a bad trade-off regarding weight.
    If you want to feel forsage do not buy CF. Also, if you want a durable bike do not buy CF.

    Please don't feed the troll

  17. #17
    stupid newbie damage24's Avatar
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    I weighed it on the bathroom scale (stood on the scale and picked up the bike, took the difference), which admittedly isn't the most precise method, and it weighed around 25 lbs +/- a pound or two. I weighed my TCR on a fish scale (probably not the best either) and it was right around 20.

    My Raleigh tank of a mtb probably weighs as much as my new and old bike combined.

  18. #18
    SSC
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    5'10" 210 lbs riding Trek 5000 (Trek 5000 OCLV 120) with no problems.

  19. #19
    SSC
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    Duplicate post

  20. #20
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    Quote Originally Posted by Biggziff
    Please don't feed the troll

    As a mechanical engineer and MBA I can provide in-depth micoreconomics and macroeconomic analysis regarding carbon fiber commercial use and hype from profit-hungry manufecturers
    Additionaly I can support my previous statement regarding CF aging, strenght and life span.
    I tried to move elaboration more to the scientific point of view not just "mine is fine" "arguments".
    All this with best possible intentions and friendly approach and only one goal->to give best advice to the bds50 since we have the similar "measures".

  21. #21
    DocRay
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    Quote Originally Posted by jtree
    sure.
    nope. for only $7,095 you can get a custom frame (no fork) from serotta, which will have oversized, super strong tubes made to handle any way you want.
    Or buy ANY other frame on the market for the same strength, and flush $5,095 dollars in the toilet for a simialr effect.

  22. #22
    ONE DOWN, FIVE UP...
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    I bought my Scott CR1 Pro when I weighed 225 pounds. It has a carbon frame, seatpost, fork/steer tube, and cranks. I have no problems with this bike. I have pedaled myself down to 195 pounds and it is still going strong.
    2007 Specialized Tarmac Expert
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  23. #23
    Style-challenged platypus's Avatar
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    with that weight, there's no reason not to look at carbon.

    that being said, carbon's not the be-all and end-all of bike frames. Ride a lot of bikes and buy the one you like the best.

    I weigh 253 (as of this morning) - I have a carbon Kestrel and an aluminum Cervelo - the Cervelo's my favorite by a long shot, but that has to do with the frame's geometry not the material.

  24. #24
    Senior Member late's Avatar
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    Hi,
    this always goes the same (when it goes right). What is your budget? What sort of riding do you intend to do? Do you want to race,commute, tour, supported trips,
    group rides, randonneur?

    There are many, many excellent bikes out there. The two big criteria are
    finding one that fits; and that is right for the types of riding you do.

    Fit is the most important.

    FWIW, here's my bike
    http://www.gunnarbikes.com/sport.php

  25. #25
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    Take a look at the Canyon F10 framset. (www.canyon.com) These CF bike frames are made in Germany and are very nice products. They were specifically made for larger or more powerfull riders who complained their CF bikes weren't stiff enough for them. Plus, they are right at the 1Kg mark for the frame... and cost next to nothing. They run 1200 euros.... and only 1000 euros if you have a racing lisence. That is for a frame/fork/headset/stem. Not a bad deal at all. Plus, those prices include the 17% VAT, so if you call to order they will deduct that from the price. So, for about $1000 USD you can get a really nice frameset including shipping. Several guys on www.weightwenies.com are using them, as well as www.fairwheelbikes.com forums. The U23 "Team Lightweight" team races these frames in Europe.
    Get on a cross bike.... you'll like it ;)

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