I have a set of stronglight cranks on my daily rider. Had them for around about five months now. I don't imagine that interval is enough to really test any such component, but they show no signs of wear. I push pretty hard, I busted a crankset on my mountain bike just by accelerating, I am probably torqing the hell out of my frame, but the stronglights are quite rigid. I don't have any other track cranks to compaire them too, but I would recommend them to anyone looking for a set in that price range.