... butyl rubberProducts:inner tube,natural rubber tube,butyl rubber tube,tyre,motorcycle tyre,rubber wheel,solid wheel,foaming wheel,rubber productsTrade Terms: ... 8,400-12 etc.2.Motorcycle inner tube size:185-17,200-17,225-17,250-17,275-14,275-18,300-17,300-18,325-16 ... 8 etc.3.Passenger car tube sizes:145-10(4.50/5.00-10), 125/135-12(4.00/4. ... 90/6.00-14), 175/185-14(6.40/6.50/6.70-14), 195/205-14(7.00-14), ...