... 400-12 etc.2.Motorcycle inner tube size:185-17,200-17,225-17,250-17,275-14,275-18,300-17,300-18, ... etc.3.Passenger car tube sizes:145-10(4.50/5.00-10), 125/135-12(4.00/ ... 6.00-13), 175/185-13(6.40/6.50/6.70/7.00-13), 135/145-14( ... 5.00/5.20/5.50-14), 155/165-14(5.60/5.90/ ... 6.00-14), 175/185-14(6.40/6.50/6.70-14), 195/205-14(7.00-14 ... 90/6.00L15), 175/185-15(6.40/6.50/6.70/7.00L15), 195/205-15(7. ...