RK Vortex O-Ring Blk OE Chain and Sprocket Kit for SUZ GSX1300R (Hayabusa) 99-07 RK Chain Model: 530GXW-112 RK Chain Type: Gun Metal O-Ring Vortex Front Sprocket: Steel 17 Tooth Vortex Rear Sprocket: Black Alum 40 Tooth Bike's Stock Gearing: 17-40