Trebol 3 CranksThe Trebol 3 Cranks have been an increasingly popular option thanks to their afforability and their high quality construction. These durable 3 piece cranks are made from 4130 tubular chromoly and feature a non pinch bolt design, they also come with a Mid 19mm sealed bearing BB included. Originally designed to be the ideal replacement for the Fly Proton, Sion, Orion and Omega Bikes but that doesn't stop you using them on another bike. ###section###