Just bought a '19 FLSTC Heritage Softail and would like to have tubeless tires. I loved the solid Fatboy wheels I had on my 2001 Heritage. Will the older style wheels fit the new 2019 bike? Different bearing size? Different hub size? The overall wheel size is 16x3 as best I can determine. Anyone else do this?

 

Stick with wheels that have 25mm bearings, and you'll be better off.

That being said, having just gone through this myself, stripping my FXFB, the rear hubs on the 2018+ Softails are wider on the pulley side, for the rear wheels.

I went with a narrower rear wheel, and had to buy a spacer for the pulley. After that, it was just a matter of determining which size axle spacer I needed, again because 2017 and older rear wheels are asymmetrical.