Are carbon MTB frames safe?
The myth that carbon is fragile again rears it’s ugly head, but it is just a myth. While both frame materials are susceptible to catastrophic failure, carbon fiber frames tend to be stronger per pound than their aluminum equivalents.
Do carbon bikes crack?
Carbon bikes are becoming much more reliable, and cracks are becoming much less common. However, carbon bikes do crack. This is often caused by prior damage to the frame, and sometimes manufacturing faults. If you notice a crack in your frame stop riding it, as carbon is well known for failing spectacularly.
Can you repair a cracked carbon bike frame?
Yes, you can! The process of repairing a carbon fiber bike frame that is cracked, damaged, or split is to lay new carbon fibers and epoxy them in the same direction as the original fibers. The end result is a stronger bicycle frame than the original build at a negligible weight gain.
How do I know if my carbon bike frame is damaged?
Look closely for scratches, especially anything deep or through the paint. With a dollar coin, tap on any suspect area and listen for a change in sound. A normal “tap” sound will become a dull thud when the carbon is broken. Gently push on the suspect area to feel if it’s softer than the surrounding area.
Where do carbon mountain bike frames crack?
A common breaking point for carbon tubes today is the underside of the down tube, near the bottom bracket.
Does carbon fiber break down over time?
No, it doesn’t breakdown over time, if constructed properly and not ridden past it’s design limits. The resin can become discolored.
Is it safe to ride a repaired carbon frame?
More from the experts in our interview below but yes, carbon fibre components on a bike can be repaired effectively, but as we have seen it’s a complicated process. Ultimately, if the repair is carried out by a trained professional with all the right tools, fixed carbon fibre can be trusted and ridden on again.
Do carbon fiber bike frames crack?
Yes, it does occasionally break, and not all carbon fibre is created equal, but no other material can be manipulated the way carbon can. One thing that does ring true with all carbon components: they need to be inspected routinely for cracks or damage.