Is there a rider weight limit for carbon bikes.

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Comments

  • svetty
    svetty Posts: 1,904
    And you resurrected this thread because?
    FFS! Harden up and grow a pair :D
  • robertpb
    robertpb Posts: 1,866
    Because he had a big shovel in his hands and couldn't help but dig.
    Now where's that "Get Out of Crash Free Card"
  • milemuncher1
    milemuncher1 Posts: 1,472
    Carbon Fiber is substantially stronger than steel. 200 million Kpa ( 29 million Kpsi ) typically for carbon Fibre, which makes it ten times the tensile strength of Steel, and 8 times stronger than aluminium, CF is typically 5 times lighter than steel and 1.5 times lighter than Aluminium as well. So CF is actually sick, and definitely the fatties friend.
  • Welshjim22
    Welshjim22 Posts: 22
    Giant specify 130kg on size guide but with many other manufacturers this info is hard to find.
  • vegasfoster
    vegasfoster Posts: 59
    I was considering carbon bike at one point so I studied up on this a bit (which is also to say I am not an expert). Carbon is technically stronger than steel, but the inherent properties of steel are such that it doesn't fatigue when flexed under normal load, so it technically can last forever. Consider that the interior and exterior of steel bikes have to be properly maintained for this occur. The carbon fibers in a carbon frame will likely last forever, but the resins binding everything together will not. Whether you want a bike that lasts forever is one consideration.

    Another has to do with damage. Steel will bend when sufficiently stressed, so you will typically know if damage has occurred. But carbon can form internal cracks that you may not be aware of until subsequent failure. If you crash a carbon frame/wheels or hit a large pothole with your carbon wheels, then you should have them sent to a qualified carbon repair shop for inspection. If you don't, then you are playing the catastrophic failure lottery. That's also why it's generally a bad idea to buy used carbon wheels from someone you don't know.

    Final consideration is the components. I had one manufacturer (sorry, but I forget which one at this point) tell me the limiting factor was the components and not the frame, i.e. my fat ass could just buy beefier wheels and it would be ok. So I would try to contact the manufacturer directly if you have concerns about a specific bike.

    That's all I got :-)
  • colnagoaddict
    colnagoaddict Posts: 1
    if you have to ask, you are too heavy...lol. just kidding.
  • milemuncher1
    milemuncher1 Posts: 1,472
    colnagoaddict wrote:
    if you have to ask, you are too heavy...lol. just kidding.

    Harsh, but true.
  • macleod113
    macleod113 Posts: 560
    well i weigh in at north of 18 stone and have had my carbon wilier over 2 years now with no (obvious) signs of weight strain :) I have however 2 sets of handbuilt wheels on 32/32 and 36/36. I know my weight and our roads and need the strength. I can still move rapidly for me and am happy.
    Cube Cross 2016
    Willier GTR 2014
  • imposter2.0
    imposter2.0 Posts: 12,028
    Milemuncher1 wrote:
    Carbon Fiber is substantially stronger than steel. 200 million Kpa ( 29 million Kpsi ) typically for carbon Fibre, which makes it ten times the tensile strength of Steel, and 8 times stronger than aluminium, CF is typically 5 times lighter than steel and 1.5 times lighter than Aluminium as well. So CF is actually sick, and definitely the fatties friend.
    Milemuncher1 wrote:
    colnagoaddict wrote:
    if you have to ask, you are too heavy...lol. just kidding.

    Harsh, but true.


    Fat-shaming and trolling - all within the same 24hr period... :roll:

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