... -6 400-8etc. 2.good gas tightness 3. 3.50-4 Pneumatic Wheel 4,OEM accepted 1. Variety: Pneumatic Wheel,Solid Wheel,Foam ... "x1.5,8"x2.50-4,10"x3.00-4,10"x3.50-4,12"x3.50-6,13"x3.25/3.50-8,14"x4.00 ... ,Diamond flower,Big Flower and moreTyre Colour: Black,redetc2.3. Inner Tube Material: Natural rubberInner Tube Rubber Percentage: 20%,30%,40 ...