Controltech cls alloy road stemthe cls collection has been designed to meet rider demands from stiffness where its needed to comfort where it counts and features that increase performance to materials that decrease price built from 6061 t6 alloys shot peended and anodized for a durable finish cls components stand the test of time both in appearance and durability features angle 5 material 3d forged al6061 faceplate al7075 stack height 40mm steerer 28 6mm handlebar 31 8mm bolts