This drive works with most of the industries drive pulleys as it uses a 1.00" billet steel shaft with a .125" key.
Another unique feature is the shaft that the drive pulley mounts on is adjustable. Simply loosen four set screws and the shaft can be slid in or out and offers the racer a couple inches of adjustability for setting pulley depth on the drive.
The shaft mount is made from billet alum. and has been machined from the backside to keep rotating weight down.