The Pro Taper Top clamp offers a unique bar mounting system that incorporates 4 levels of rigidity. Features 5 front to back mounting options and a one-piece top mount designed to prevent "twisting" in the event of a crash. Machined from forged 6061 T6 aluminum. Forged bar clamps with one-piece top clamp to resist "twisting". Five front to back bar clamp positions. Three rubber mount cushions (soft, medium, firm) kit also includes a rigid aluminum cushion.