The Oval A300 Alloy Seatpost is made from a 3 axis cold forged, 6061 T-6 black alloy body for both strength and lightweight. mm wide by 38 mm deep, cold forged clamp gently cradles lightweight saddle rails and the marine stainless steel bolts eliminate rust. The Oval A300 28 mm offset is perfect for most common saddle positions and is available in 28 cm or 40 cm lengths in just 27.2 mm diameters. Weight 250 g