well, what happens is that a hard landing (like casing a jump) sometimes makes the lever dealie up front flip up so the system unlocks, and then the plactic peice under the metal part can break easily.
also, if u plan on breaking them, or taking the chance, then make sure u have the warrenty. like, if u got them off ebay for example, they prolly wouldn't be.
~Chris
You know something that would really make me applaud? A guy gets stuck in quicksand, then sinks, then suddenly comes shooting out, riding on water skis. How do they do that?