Heavy Duty Sprocket / Rotor Hub for 1-1/4" axles All hubs are CNC machined from billet 6061-T6 aluminum alloy and have 6 (1/4-28) threads on a 5-1/4" pattern. This hub is a must for high powered applications like UAS, RWYB, and Mower Racing. Will work with traditional 35 pitch gears and 428 pitch gears.
