SEALED CARTRIDGE BEARINGS* - Offers performance and durability from day one. - Resistance to wear is beyond the competition SILICONE DAMPER* - Reduces vibration and noise for enhanced operations. *Standard on most models INSTRUCTIONS INCLUDED - For a pain free install including pictures step by step. 304 STAINLESS STEEL - Precision fit and finish using high tolerances and CNC machining. - Super smooth form and function for effortless shifting.