1.size:275/300-21 motorcycle butyl inner tube
2.valve:TR4    weight:0.45kg
3.the tension strength:7Mpa 8Mpa
4.we produce various of inner tube and tyre flap,with"Quality first,Credit upmost"
5.our products have saled to more than 50 countries and regions,enjoy the customer high praise
6.so if you need inner tube and tyre flap,please do not hesitate to contact me,we will do our best to satisfy your required.Thank you!

the details of products as follows:

butyl tube	Valve	Weight(kg)	7mpa
250-16	TR4	0.3	$1.11
225/250-17	TR4	0.32	$1.13
225/250-19	TR4	0.35	$1.23
250-17	TR4	330	$1.20
250-18	TR4	350	$1.23
275-14	TR4	300	$1.11
275-17	TR4	360	$1.26
275-18	TR4	380	$1.30
275/300-19	TR4	420	$1.43
275/300-21	TR4	450	$1.48
300-12	tr4	300	$1.11
300-14	TR4	320	$1.13
300-16	TR4	360	$1.35
300-17	TR4	400	$1.38
300-18	TR4	420	$1.43
325-18(90/90-18)	TR4	440	$1.46
350-16	TR4	440	$1.46
350-17	TR87	450	$1.48
350-18(110/90-18)	TR4	470	$1.52
110/90-16(400-16)	TR87	520	$1.61
130/90-15	TR4	550	$1.68
410-18(130/90-18)	TR4	520	$1.61
10*2	TR1	100	$0.78
200*50	tr87	100	$0.85
250-4	TR87	140	$0.89
300-4	TR87	0.65	$0.99
300-8	TR87	220	$1.01
300-10	TR4	300	$1.08
350-4	TR87	180	$1.00
350/400-8	TR87	300	$1.23
350-10	tr87	320	$1.33
400/450-8	tr87	350	$1.31
16*650-8	tr87	480	$1.93