motorcycle inner tube 1\the valve of inner tube :TR4 2\with blue line 3\weight :about 450-480g/pc we can produce other size 250-4 TR87 300-4 TR87 350-4 TR87 350-6 TR87 350-7 TR13 OR TR87 350-8 TR13 OR TR87 400-6 TR13 OR TR87 400-8 TR87ORTR13 400-10 TR 87 500-10 TR13 200-17 TR4 200-18 TR4 250-17 TR4 250-18 TR4 250-16 TR4 300-17 TR4 300-18 TR4 300-16 TR4 410-18 TR4 90/90-18 AND SO ON CARTON or 100PC/woven bag