Nitrous 7 Series 1/2 x 1/8 Chain Axle's Nuts by Eastern Bikes are a lightweight way to add some color to your ride. CNC Machined 7075 Aluminum Designed to adapt 3/8" axles to 14mm dropouts without pegs For use on 26 TPI axles(most common BMX axle tread) .5oz each, sold individually