About Crank Brothers Egg Beater Pedals: All Egg Beaters feature All-Access 4-sided entry, replaceable cartridge bearings and bushings, 6 degree float, 2 release angle options, standard MTB cleats/hardware included. Suitable for MTB or Road use. 4-Ti: 6al/4v titanium body/wing/spindle. Spindle is 4mm shorter than other Egg Beaters. Packaged in a platinum aluminum box with Road cleats and their premium MTB cleats. 2-Ti: 6al/4v titanium body/wing, steel spindle. Packaged in a black aluminum box. Ti: 6al/4v titanium body, stainless steel spindle, wing. SL: stainless steel body, spindle, wing. C: formed steel body/wing, CrMo spindle. MXR: price-point Egg Beater with formed steel body/wing, CrMo spindle.