... PU foam tyre 1.Modle:2.50-4 2.Rim:steel/plastic 3.Bearing:16,20,15,19 4.Lightweight wheel Product Details ... Rim:steel/plastic 3.Bearing:16,20,15,194.Lightweight wheel PU foam tyreOur factory is one of the leading ... details:1.Model/typle: PU foam tyre, pneumatic wheel, solid wheel etc.2.Size : PU foam tyre(6x2,2.50-4,3.00-4 ... x5.00-6,4.80/4.00-8,etc.)pneumatic wheel(6"x2",8"x2.50-4,200x50,10"x280/ ...