Bike Seatpost - Titec - Pluto XC Seatpost Gold The Pluto seatpost uses a custom-drawn, carefully butted 2014 aluminum for durability and a two-bolt clamp for easy setup. If lightweight and durability are paramount in your search for a rock-solid performing seatpost for all-purpose riding, look no further. * 2014 Aluminum T6 Materials * 350mm Length * .75" Clamp Offset * 27.2 or 31.6mm Diameter * 250 / 270 grams * Black