Review of IZUMI TIRE

check your product quality. i bought izumi tire tube last sept. 2, 25 days later the the valve stem rips off. i bought 2 tire tube in 2 months. since this s made in philippines i am concerned with your product quality. i asked a tricycle driver why he didnt use izumi tire he said the quality of izumi tire is poor.the tread lug is still thick but the flies are already visible. i hope you'll consider my message to your company.