RK Upgrade Kit Yamaha YZF750 SP 530 Conversion Kit 93-97 – 3602748RK. RK OE upgrade chain and sprocket chain and sprocket kits contain a heavier duty RK chain than that supplied as OE on the motorcycle when new. They are supplied with high quality steel sprockets. Terms and conditions apply. CHAIN RK GB530XSOZ1-104 GOLD. RK SPROCKET KIT BOX. Sprocket Front RK-C6186-16 JTF580 Afam 21602. Sprocket Rear RK-B6840-39 JTR859 Afam 12801. For full fitment details in a searchable list please check the FITMENTS tab. Yamaha: YZF 750 SP. Type : H Duty X Ring. ARKS Global is an online retailer established since 2014. Listing designed by ARKS Global Ltd.