For those of you who use a bike carrier on the rear bumper of your TT. What did you do to reenforce your bumper? Did you add a a receiver under the bumper welded to the frame? I’ve read plenty of post...
If you have bikes on the back of a trailer, do not use the bumper, have a hitch welded to the frame. Also, do not use a standard car type bike carrier, make sure you get one designed for trailers. They need to not be able to articulate, fixed position. I have a Yakima 4 bike rack designed for the back of a trailer. We mostly carry 3 bikes but have carried 4. Have never had a problem.