Carbon cranks have a bit of a spotty track record, at times setting the internet on fire with horror stories and pictures of snapped crankarms. When carbon cranks first appeared in mountain biking, they were by far the lightest options out there, and the early versions probably went too far with the weight savings without having properly validated the longevity and durability of the construction. Riders may also be at least partially to blame for those early durability issues, often seen running the lightest XC cranks they could find in their quest to drop some grams from their enduro or even...