This genuine AL-KO jockey wheel is the perfect upgrade for your prized van, camper or trailer from the standard 150 mm one as not only do you get a nice easy roll from the larger 200 mm wheel when pushing your van manually but it has a massive static capacity of 400 kg which is perfect for a big van. It has a 48 mm tube diameter so you can use the standard clamp (if one on your trailer) or simply attached the clamp that is included