colored bmx tires 1 certified by ISO9001:2000 2, prompt delivery , competitive price and best service ... .production efficiency.1.OEM is acceptable .2. Certificate: CCC, SONCAP. E-mark3. Timely delivery and reasonable price. 4. ISO9001:2000 quality ... system control.We can offer electric , mountain , crusier , scooter , BMX & FREESTYLE ,RACING,TUBE & VALVE.121/2*21/416*1.7516*1 ...