The Blue Ox unit is by far the heaviest in the test at about 125 pounds, and it was quite the shock when we picked it up. It's so heavy that having a buddy around is required to assemble and install or remove it from your truck. Its form factor seems to be more suited to a Harley than a motocross bike, with a huge ramp and a platform wide enough for a fat rear tire. It's sturdy, for sure, but possibly overbuilt. In all its glory, the Blue Ox carrier is very well built. Good, clean welds, high-quality powdercoating and an obviously durable nature make it a solid piece. Odd is the removable tiedown arms, which, instead of bolting in or securing in place, simply slide into channels and rely on strap tension to hold them in. They're secure and didn't budge when we tested, but not having them bolt in makes us nervous. Not because we feel the bike's security is at risk, but more so because we might lose the arms! Assembly went well, except the wheel chock was a pain to bolt on, requiring some serious muscle to get it to stretch around the main channel.