3.008 Inch Inside Diameter Birdcage Bearing. Bearings replace damaged or binding bearings in most popular birdcages. Bearing outside diameter is 3.625 Inch, the inner race is 0.875 Inch wide and the outer shell is 0.745 Inch wide.
The fastest suspension is one that moves without resistance. Allstar Performance Birdcage Bearings provide the smooth rotation needed for birdcage assemblies to follow suspension movement without unnecessary friction or binding.
By allowing the rear suspension to articulate naturally, these precision bearings help improve chassis consistency, weight transfer, and traction throughout changing track conditions. Built for the demanding world of circle track racing, they deliver the durability and precision serious racers depend on.
