china motorcycle tire and tube 1)Soncap and CCC Certifice 2) nature rubber and butyl tube 3)Fit different road conditions china motorcycle tire and tube1)Soncap and CCC Certifice2) nature rubber and butyl tube2)Fit different road conditions3)different size:225-17,250-17,250-18,30017,300-18.90/10, 90/90....- china Motorcycle tire and tube