ZOOM Suspension Seat Post – SPS-C255/ISO-C/EN15194 31.6Diameter 355mm Total Length Offset 12mm Weight 640g Anodized Black Ideal for making trail and road rides smoother for mountain,road, ebikes and universal bikes. Weight: 656g = 1.8lbs ZOOM has been a leading supplier to the bicycle industry for almost 40 years, with a focus on providing innovative handlebars, stems and seat posts to bicycle assemblers and consumers globally… Choose the travel distance required, tube sizing and cabling method (if in doubt check your bike specs first.) Returns for incorrect purchases will incur costs Check our full range for compatibility