Vortex Motorcycle Rear Sprocket Silver 642A-50 Yamaha YZF-R1 R1M R1S YZF-R6 R6

Vortex Rear Sprocket Aluminum - Silver 50T 642A-50

Vortex Silver 60-Tooth Rear Sprocket 642A-60 vtx642A-60

Vortex 642A-45 Road 45 Tooth 520 Rear Sprocket Silver Yamaha YZF-R6 1999-2002

Vortex CAT5 Rear Sprocket (520 / 46T) (Blue) Compatible With 99-02 YAMAHA YZF-R6

Vortex Motorcycle Rear Sprocket Silver 642A-48 Yamaha YZF-R1 R1M R1S YZF-R6 R6

Vortex 520 Conversion Sprockets 44T Rear 642A-44 57-3771 642A-44 vtx642A-44

Vortex CAT5 Aluminum Rear Sprocket 48T 520 Black 435ZK-48 Kawasaki/Yamaha/Suzuki