With 147g it is the lightest 612 ERGOWAVE® model

Please use correct installation methods and follow your frame's torque specifications

Model No: RD-M5180S

Thule solves that problem with the Bed Rider

30mm aluminium axle

Burgtec Xpress Alloy Seat Post - 30.9mm - 300mm PDP|PLP|Suits Freehub Type With 147g it is theThe Xpress Seat Post is part of your perfect finishing kit. Add The Cloud MK2 Seat for the icing on the MTB cake. As used by Santa Cruz Syndicate riders, Jackson Goldstone, Nina Hoffman, and Laurie Greenland. Trek Factory DH Team riders; Loris Vergier, Reece Wilson and Bodhi Kuhn. Features 7075 Aluminium 30. 9mm and 31. 6mm diameters Length 300mm Laser Etched