I've used one for dirtbikes with a small SUV. I actually had a bike falloff once, although I don't remember the specific circumstances. In general, the ramp to load your bike is kinda short, so it can be hard to load the bike. Also, the tie-down points aren't offset very much, which reduces the stability substantially. The drawbacks are: Tie-down stability, difficulty in loading and tongue weight. The plus is: not needing a trailer and ease of storage. Personally, I'd use a trailer if at all possible.