Samyo Lightweight Bicycle Bike Platform Flat Pedals CNC Titanium Alloy Spindle Ti Axle for MTB / Road / Folding Bike (Black) Very lightweight and easy to install, Only 9.6 Ounces/pair (270g). Material: CNC machined aluminum alloy body + CNC machined Titanium axle. 3 sealed Cartridge bearing. Size:3.94*3.74*0.67 Inches. Spindle: 9/16".