I would love to see a scientific study on the effects of clipless pedals in mt. bike crashes. I got on here after effing up my knee the other day from an off kilter landing and all I saw on this rider down page was ACL this and torn that, it was death and doomsday for me as I lie in bed wondering whats wrong with my knee?? I remember the bike rolling over me and still being clipped in, but I am not sure if that helped or hurt. I am just glad it's not too serious and doesn't require surgery. Have you ever had the doctor "manually" check your knee? It's kinda scary, but I am confident in his skills I will be resting it for at least a week and working on upper body strength in the meantime. Anybody have a suggestion for good knee braces for DH? I ride XC, but want to strap the support on for long descents.