Theory Outside Pedal Description: The Theory Outside Pedals are comprised of a one piece nylon plastic pedal body, a durable chromoly spindle, and unsealed while still smooth bearings. The Outside pedals feature 14 molded pins per side to provide plenty of grip to keep your feet in place. Theory offers these pedals in a wide variety of colors to be sure you can find a pair to match your vibe. Sold in pairs. Note: 1/2" fits 1-piece cranks. 9/16" fits 3-piece cranks. Specifications: Platform Size: 95mm x 95mm Platform Material: Plastic Composite Spindle Size: 9/16" Spindle Material: Chromoly Bearings: Unsealed Pins: 14 per side Color: Black Weight: 14 oz Dan's Comp recommends the use of a Pedal Wrench when changing pedals. Find this and other useful tools in the BMX Tools section. Not sure how to install your pedals? Check out our video below. Hint: one of the pedals has reverse threads!