S&M's 101 Pedal boasts a lightweight, super strong alloy body construction making the 101 incredibly durable, with reinforcements in key areas to prevent breakage. The body spins on heat-treated, oxide-coated chromoly spindles with precision bearings to keep them feeling smooth.They have a compact 101mm square platform with molded and screw-in tapered steel traction pins to add grip without adding excess weight. Micro-knurling across the surface adds extra grip while recessed dust shields help keep your bearings running smooth for longer. ###section### Product Specs TYPE/FITS: 9/16 - 3pc MATERIAL: Alloy BEARINGS: Looseball PACK SIZE: 2 (Pair) WEIGHT: 595g / 21oz