Fixed bike seatposts

The new SL-K SBS SB20 seatpost is lighter and stiffer than ever - just 221 grams for a length of 27.2 x 350mm. By using a UD carbon shaft with a bonded alloy head and a sophisticated SBS clamp design, we can achieve what we believe is the best quality SL-K seatpost yet. Available with polymer Di2 battery holder. UD Carbon shaft with bonded alloy head Forged alloy top clamp Fit standard 7mm rails and 7x9mm oval rails Chromoly hardware Surface treatment: UD carbon Black graphics Specifications: Type: Saddlebags Technology: SBS Color: Neutral Series: SL-K Discipline: ROAD, MTB Material: carbon Weight: 221 g Compatibility: WE/Di2 Length: 350, 400 Backrest interval: 20