Strong yet lightweight plated steel uni-hub. 1-1/4″ bore with 1/4″ keyway hub brazed to steel plate. Includes 6 bolts, 6 nuts, 1/4″ key and set screws. For sprockets with 5-1/4″ bolt circle. Easily positioned on axle. Uses AZ2152 or AZ2158 Sprockets.





