I don't usually carry motorcycles, but I have installed removeable chocks, which I think makes doing so much safer.
Link to example of removeable wheel chock
I countersunk the mounting hardware into the floor, and used an extra set of mounting hardware to put one mount on each side, and one in the middle. I also found the need to add a couple of tie down ancor points (big eyelets through the frame) a bit farther ahead than what came on my trailer...
Dodge Ram dually laramie 4x4 w/jake, B&W, Brakesmart.
Kit Patio Hauler 394F toyhauler 5th wheel
Camo 680 Rincon, Green 500 Foreman, Blk twincam Roadking