I dont know much about Cranks and Bottom brackets so i ned your opinions to help me out. I ruined my old crankset and bottom bracket on my Trek 4300 (it had Shimano Alivo) and I need to replace it. My lbs recommended that with the beating i put on the old one, even though i do hard xc riding (hopefully racing soon) and am light weight (5'9 125 lbs) They recommended Deore LX everything which would cost me $160, or Deore which would be much less. Ive been researching these two cranks while im waiting for the trek guy to come to see if its under warrenty, and the main difference i see ( correct me if im wrong) is the LX is splinned. So which one would be the best for me and my riding style for the $ and wouldnt break like my old ones. Please help me out here i dont want to waste money, thanks.