... Dia.(mm)Width(mm)Hub length(mm)Hole Dia.(mm) 3.00-42607075-8116/18/20/25 1,Good design of ... so on ;2,You can choose the weight and the colour of the pu part;2,Plastic rim and steel rim ... with many sizes, forms and colours;3,Bearings and bushes with many sizes like 1/2",5 ... /8",3/4",1" and other sizes;4, Angled grease fitting and ...