Norco Aurum HSP suspension bearing kit. Note that this bearing kit is different than other Aurum bearing kits. The HSP is a special "High Single Pivot" and has a special idler pulley. We include a stainless steel replacement bearing for the pulley in this suspension kit. Bearings for the shock mount are included as well. In total, the kit contains 11 cartridge bearings. 8 of the bearings are Enduro MAX (full complement) bearings with Black Oxide anti-corrosion bearing race treatment.