United Supreme Pivotal Seat PostGiving superb support whether ridden shut or at its full extension, this hard-wearing alloy seatpost by Universal is compatible with all Pivotal saddles. hard anodised for extra durability, it bears the brunt of bumps, bangs and landings superbly as push your BMX to the limit. Features: Material: 6061-T6 Alloy Weight: 109g Buy United Components from Chain Reaction Cycles, the World's Largest Online Bike Store.