... factory.1.Motorcyle tyre size: 325-16,300-17,300-16,300-18,275-14,275-17,275-18,250-18,350-10,100/90-10,300 ... -8,400-8,400-12 etc.2.Motorcycle inner tube size:185-17 ... ,200-17,225-17,250-17,275-14,275-18,300-17,300-18,325-16,325-18,110/90-16,275-17,350-18,400-10,400 ...