Concave machined aluminum body with CrMo wings Integrated traction pad: 2 sizes included to fine tune shoe/pedal interface Igus LL Glide bushings, Enduro cartridge bearings and dual lip seals to prevent contamination 4sided clipless entry with customizable float and release angle 16 adjustable traction pins per pedal LS spindle is 5mm wider than standard model 5 year warranty