Deity Retina Seatpost Ready To Ride If you're riding aggressively on the trails, you'll want to have durable components on your bike. The Deity Retina Seatpost has an extruded and machined 2014 T6 aluminum head and body and features patented I-Beam technology. It is compatible with Deity Sidetrack and Frisco Saddles or any SDG I-Beam saddle. With a two-tone bead blast and polished black anodized finish, you'll have a stylish-looking ride. Features Patented I-Beam Technology and is compatible with Deity Sidetrack and Frisco Saddles or any SDG I-Beam saddle Extruded and machined 2014 T6 aluminum head and body Wide range of fore and aft adjustment SPECIFICATIONSDiameter27. 2mm, 30. 9mm, 31. 6mm Length350mm Offset-Material2014 T6 Aluminum Intended Use MTBWeight228g | Deity | Retina Seatpost 31. 6Mm