After reading the reviews I realized they can't be perfectly tight. Here are the steps I have taken to make it work well: - Clean the wheel hub bore and hub surfaces - Check that the ring is snug against the hub and wheel, - Place the anthill on the hub centering ring, - Put the ring in drive the wheel in - if it hangs even slightly from the hub, wrap a layer of electrical tape, non-overlapping, around the hub so the tape extends past the front edge of the hub, then fold the edge of the tape over the end of the hub, so the wheel slides and doesn't get caught on the edge - bring the wheel into position where it can slide on the hub, this is where the top center wheel bolt helps - slowly tighten each tab one turn in a star pattern until everything is twisted properly - behind the go bike. It worked for me and it drives perfectly smooth at all highway speeds. Note that these rings aren't really meant to carry a load, just to dead center the wheel.