Chad Kerley's signature CK pedals feature a comfortable concaved body design, with 12 molded pins per side and micro knurling across the entire surface for added traction. The pedal bodies are injection molded from a tough nylon fiberglass blend, spinning on a durable full Chromoly spindle. Embossed end caps feature the CK signature logo, and feature a unique removal slot should the pedal need to be tightened or greased. - Spindle Size: 9/16" - Spindle Material: Heat Treated Chromoly Steel - Body Material: Nylon and Fiberglass Blend - Traction Pins: 12 per Side - Installation: 15mm Pedal Wrench / 6mm Allen Key - Weight: 1.2oz