Anything can snap within reason, nothing is bomb proof, especially the cranks. I've snapped 4 odyssey twombolts, 3 fly cranks and now I'm riding Primo Hollowbites. Ugly as sin, but their closest thing to bomb proof you're going to get for cranks. When you start spendind £140 a pop on cranks you would expect to be real hot. Hollowbites seem to be able to take a good old beating. Highly recommendable.