Our first BOB trailer set the standard for all others to come: tough, dependable and ready to roll wherever life moves you. The Yak Trailer carries up to 70 pounds of what you need to ride longer and further. It attaches to most bicycles' rear wheel hub, creating a low and stable center of gravity with excellent aerodynamics. Yak 28 is compatible with 28" wheels, 29er mountain bikes and 700c road bikes with full wrap fenders. Attaches quickly and easily to a bicycle's rear wheel using the BOB Quick Release or BOB Nutz system. Low center of gravity keeps the weight off your bicycle frame for better handling and performance than racks and panniers. Trailer tracks rear wheel of bicycle, making it easier to navigate narrow roads or single track. 70 lb. carrying capacity so you don't have to leave anything behind. Constructed of 4130 chromoly steel tubing that's lightweight and long-lasting.