Crank Brothers Cobalt 1 Setback SeatpostThis brilliant seatpost is perfect for MTB use as it offers amazing stiffness and support as you weave from trial to trail. It features a 6061 aluminium construction which makes it ideal at handling the abuse that comes with aggressive off-road rides. What’s most impressive is crankbrothers has also given this version an aluminium clamp and bridge for another layer of robustness as you shred.Features: Post Material: 6061 Aluminium Clamp Material: Aluminium Bridge Material: Aluminium Use: MTB Length: 400mm Clamp Diameter: 27.2mm Setback: 20mm Weight: 290g (approx) Buy crankbrothers Components from Chain Reaction Cycles, the World’s Largest Online Bike Store.