Replacement Saddle Clamp When used with Adept "Centrum Seatpost", "Rear Guard Seatpost", and "Vanguard Seatpost", you can attach the saddle of 0.3 x 0.35 inch (7 x 9 mm) carbon rails. #2014-T6 Aluminum Alloy for 0.3 x 0.4 inch (7 x 9 mm) Rails, Centram Seatpost (SPT07100-03), Vanguard Seatpost (SPT07200-03), Compatible Weight: 2.3 oz (59 g), Product color and size may differ from the actual product depending on the type of display. Product specifications, logo design, etc. may be subject to change for product improvement. We also cannot answer measurements or personal fit that the manufacturer does not announce. Please be aware of