Meet RY17040-UK-6S5-4 Replaces Fit For Yamaha RY17040-UK-6S5-4 FX-SHO/FZR Gen-III HKS Super Duty Supercharger Shaft Upgrade Kit — where style meets true functionality at a competitive price. The go-to option for buyers who demand real value and best prices. AliExpress shipping you can trust — only at Ktayrav.college.