A fresh look and a new logo for the Zero1 seatpost, it features the same, iconic twin bolt adjustment from the RSX02 seatpost. A light 6061 alloy seatpost that offers unbeatable value for money. Specification: Material: Alloy 6061 Length: 350mm Diameter: 27.2 and 31.6mm Setback: 20mm Weight: 295g (31.6mm) Compatible with Deda adaptor for Di2 Battery. Size: 27.2MM - 20MM SET-BACK; Colour: BLACK ON BLACK.