For our 2021 RTL, I bought a WeiSen hitch via Amazon and have been very pleased so far. Added Show Chrome/Big Bike Parts 5 pin wiring harness and Uni-go connector. Cut the upright verticle receiver section off of my Uni-go adapter left over from the GL1800. Bored a 7/8" hole in it and attached it with a good 7/8" bolt and nut. Solid setup to pull our Uni-go trailer. BTW, this hitch does not really mount to the axle. It mounts to the swing arm with a bolt through the hollow axle to help keep it clamped tight. We pulled it over back roads, construction, city bypasses (thanks, Chattanooga) to Birmingham and back with no issues. A ball-mount two-wheeled trailer should pull just as well. The WeiSen is no longer available on Amazon, but they have similar. It installed very easily.