Kaze6

Anybody who hasn't figured it out, a big bike rack on a Class I receiver is a BAD IDEA.

Trailer hitches are designed to PULL in the direction of the strongest structure, and tongue-weight ratings assume forces being applied and removed in fairly smooth actions, as the trailer rocks.

Loading a bike rack puts most force perpendicular to the strongest structure, and as the rack and bikes rock back and forth, they are putting a lot of lateral G loading and twisting onto the receiver, which it wasn't designed to take.

When you look at the cost of a quality receiver-mount bike rack which will handle 4 bikes, you're into the price range of a small utility trailer, which is the way that I would go.