CAT5 Aerospace Aluminum Sprocket.
Vortex Racing 435 Sprockets for 520 Chain. All 435 sprockets have a 130mm bolt circle with a 110.1mm ID
Vortex Racing has been manufacturing top quality motorcycle racing components since 1995. Owned and operated by motorcycle racers, Vortex focus is on absolute quality. All of the Vortex race components are made to the tightest tolerances with the best quality materials for the application.