[RogerR]

Originally Posted by Mk.32

With the keyway hub you can just use a keyed shaft. And then maybe some shaft collars or eclips to hold it in place.

My question is how do you attach a sprocket to them, like the KOP wheels.

Andymark sells a couple different sized sprockets that have a 1/2 inch bore and an appropriately sized keyway. It's been a long time since I've used beadlok wheels, so I'm not sure of the bore size. Mcmaster Carr sells sprockets with finished bores (with keyways and setscrews), that you can purchase as well. Finally, Andymark sells a couple sizes of keyed hubs that have a bolt pattern that matches up to kit wheels (and many other FIRST components).