Redesigned for greater durability with stronger tapered spindle, updated bearings and air/water-tight seals. All Egg Beaters feature All-Access 4-sided cleat capture, 6 degree float, 2 release angle options, cleats/hardware included. 9/16" thread. Suitable for MTB or Road use. 5 year warranty (except Egg Beater 1 has 2 year warranty). Egg Beater 11: cast/machined 6al/4v titanium body/wing/spring/spindle, inboard needle, outboard cartridge bearing. Egg Beater 3: investment cast steel wings, steel spindle, inboard needle, outboard cartridge bearing. Egg Beater 2: investment cast and stamped steel wings, steel spindle, inboard bushing, outboard cartridge bearing. Egg Beater 1: stamped steel wings, steel spindle, inboard bushing, outboard cartridge bearing.