I have a Young 2 fat tire e-bike rack with the inherent wobble. The hitch tightener solved the problem.
I received my single e-bike rack, lock and hitch tightener and installed it on the 2" receiver on my Jayco North Point. I had an issue with the threading on the arm used to support the bike vertically, and Young sent me a replacement quickly. It installed properly and now I am just waiting for our first vacation to take the bike with me.
Hitch Tightener for 1.25" and 2" Hitches, Reduce Movement from Hitch Tray Cargo Carrier Bike Rack
The stabilizer works as advertised. The price is in range of others on the market. The only shortcoming is that it doesn't have a rubber coating that some have.
This allows the hitch adapter to become more secure and it works well. Please always check for tightness after you have driven some.