THERMALITE 9/16" - Features: Unique concave, low profile design molded w/ Thermalite nylon based material. Recessed end to prevent damage to bearing cover. Looseball bearings. - Spindle: Chromoly w/6mm Broach and 15mm Wrench flats. - Material: Thermalite™. - Pedal axle diameter: 9/16". - Pins: 12 In-molded per side. - Color: Black, Bright Blue, Gang Green, Neon Orange, Pink, Purple, Red, White & Neon Yellow and Limited Editions. - Weight: 13.8oz. (391g.).