A couple of years ago I fabricated a small metal utility trailer that was completely enclosed that had bars across the top so that I could create a kayak and a bike rack for vacationing and weekend travels. I had originally set the rack up to hold four bikes but had only purchased two of the wheel holders at the time. I finally went back and got two additional wheel holders to complete the setup for a four-bike haul. The quality of the Hollywood products is amazing. These wheel holders are heavy-duty still and have a fantastic finish on them and have held up excellent to the elements. Not only have I purchased the accessories to build my own custom bike rack / trailer but I also have two additional older model Hollywood racks that have done a lot of hauling of two bikes. This company has great customer service and great products!You're looking for a great product great customer service at a great price look no further than Hollywood racks!