PRO PLT Seatpost A Robust Alloy Road Seatpost A seatpost is needed on just about every bike. It's the part that attaches your saddle to the rest of your bike so you can ride comfortably. The PRO PLT Seatpost is a robust alloy road seatpost and is 3D-forged from AL-7050 alloy and has an innovative I-bolt clamping system which allows for a wide range of saddle angle adjustments. It is compatible with Shimano Di2 battery integration. Features Robust alloy road seatpost made from 3D-forged AL-7050Innovative I-bolt clamping system allows for a wide range of saddle angle adjustments Compatible with Shimano Di2 battery integration SPECIFICATIONSDiameter27. 2, 31. 6mm Length400mm Offset0mm, 20mm Material7050 Aluminum Intended Use Road Weight From 265g | Pro | Plt Seatpost 31. 6Mm, 400Mm, 0 Offset | Aluminum