butyl Bicycle tire tube 1.A/V.E/V.D/V /F/V ... quality & competitive price 3.Manufacture directly 4.OEM butyl Bicycle tire tube (rubber tube and butyl tube ) 1. A/V , E ... , HONDURAS,VENEZUELA , BRAZIL , PERU, CHILE ,BOIVIA, ARGENTINA.Australia NEW-ZEALANDMAIN PRODUCTS SIZES Racing tube 700x23c, 700x35c,28”: 28X1.5, 28x1-5 ... to customer’s requirement Minimum order : 2000pcs Quality grade :A Tire tube