2.75

I am wanting to set up a few sets of Tri-star wheels that are 4" with some sprockets to run on small bikes. They are 3 bolt, Spacing appears to be 2.75" bolt circle so I am looking for a 3 or 6 bolt pattern. If I read right its possible the universal sprockets with the slotted holes might get...

new never used 2 3/4" ball hone, 320 grit....$35 shipped...