This carrier is very easy to mount on a trailer and looks good. Very durable compared to some I also looked at before buying. The bolts that came with it weren't long enough for the nuts so I had to go to the warehouse and buy some longer carriage bolts. It was a little uncomfortable but overall not that much and only a few bucks. I only have an aluminum bike so I was a little surprised. If you have a very flimsy galvanized spare tire I think they might fit. Perfect except for the short carriage bolts that come with the kit.