Product Description The Haro Lineage Seatpost Clamp features a classic look with a single bolt design. This seat post clamp is CNC machined from 6061 aluminum and provides the strength needed to properly hold a seatpost firmly. Haro Lineage Seatpost Clamp (Black) (28.6mm) at Dan's Comp $18.99 Buy Now Check Price on Amazon Check Price on eBay