Riva Racing Yamaha SVHO/SHO Supercharger Shaft Upgrade Kit

Riva’s Super-Duty ‘GEN-4’ Supercharger Shaft Kit for the FZR, FZS, and FX-SH0 provides the ultimate in reliability for high boost applications. Kit features a revolutionary hydraulic shaft stabilization bearing that limits shaft deflection and wear. Bearing stabilizes end of supercharger shaft via high pressure oil film dramatically increasing the stability of the system. Hydraulic end bearing and one-piece shaft bearing are fed by a through-shaft oiling system providing superior lubrication. Oil is delivered by braided stainless line and injected into a billet end cap that houses hydraulic bearing. Shaft is precision machined from a single piece of high-strength billet steel producing a one piece shaft, collar & gear. This eliminates the common failure point on stock shafts where the OEM gear is pressed onto shaft. Shaft also features larger diameter threads & nut for added strength. Kit includes new one piece bearing with increased surface area providing improved torsional st