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

Vortex CAT5 Rear Sprocket (520 / 49T) (Blue) Compatible With 99-02 642AZB-49

Vortex Red 51-Tooth Rear Sprocket 641AZR-51 vtx641AZR-51

Vortex Red 40-Tooth Rear Sprocket 642AZR-40 vtx642AZR-40

Vortex Red 43-Tooth Rear Sprocket 641AZR-43 vtx641AZR-43

Vortex Red 44-Tooth Rear Sprocket 641AZR-44 vtx641AZR-44

Vortex Red 54-Tooth Rear Sprocket 641AZR-54 vtx641AZR-54

Vortex Red 48-Tooth Rear Sprocket 641AZR-48 vtx641AZR-48