|The YAK Plus trailer design enables cyclists to attach the single-wheeled trailer to virtually any bike's rear wheel, including full-suspension bikes and bikes with solid axles. The single wheel, in-line design creates a low center of gravity, with excellent aerodynamics and all-around stability. Features include quick and easy attachment, 4130 chromoly steel tubing construction for strength and durability, and light weight (13.5 lbs./6.1 kgs). 16 x 1.75in rear wheel. 70 lb load capacity.