we are a factory supplier of motorcycle inner tube with many years of exportation experiences and expansive market all over the world. advanced facilities, skilled engineers, spirit of being responsible, strict management combined with years of experience renowned our products overseas with the certifications of ISO9001: 2000 SONCAP, CCC and the honnor of " famous brand of shandong province" 300-17 motorcycle butyl inner tube 1.raw material: butyl rubber 2.rubber percentage: 38% 3.valve: TR4 4.weight: 400g 5.tie-in tensile strength: > 8.1Mpa 6.tensile elongation: > 450% 7.package: 1pc in a polybag then 50 polybags a carton or a woven bag, special requirements accepted. 8.delievery time: within 25 days ASAP 9.payment term: T/ T way, 30% deposit, 70% balance payed within 15 days after the shipment 10.certifications: CCC ISO9001: 2000 SONCAP various sizes: 225-17 250-16 250-17 250-18 275-14 275-17 275-18 275-21 300-12 300-16 300-17 300-18 300-19 325/ 350-16 325/ 350-18 110/ 90-16 410-18... other products: motorcycle natural inner tube, motorcycle tyre, truck tube, wheel barrow, solid wheel, rubber wheel... various sizes: sizes of motorcycle inner tubes and tyre 300-8 250-16 275-21 325-18 300-14 70/ 90-17 350-8 250-17 300-16 350-16 90/ 90-10 100/ 90-10 400-8 250-18 300-17 350-18 90/ 90-12 100/ 90-16 300-10 27 5-14 300-18 410-18 90/ 90-18 70/ 100-19 300-12 275-17 300-19 400-12 100/ 90-19 80/ 100-21 350-10 275-18 325-16 450-12 90/ 100-16 225-17 sizes of motorcycle tubeless tyre 300-10TL 300-18TL 110/ 90-16TL 400-12TL 350-10TL 90/ 90-10TL 130/ 70-12TL 300-8TL 400-12TL 90/ 90-18TL 120/ 70-12TL 130/ 90-12TL 275-18TL 110/ 90-10TL 130/ 60-13TL 90/ 90-12TL sizes and pattern of rubber wheel SIZE PATTERN 6X2 PR1000 8â X250-4 PR1400 PR1401 PR1402 PR1403 PR1404 PR1405 10â X300-4 PR1805 / PR1805-2 / PR1805-3/ PR1805-4 400-4 PR1808/ PR1809 200X50 PR1408 12â 350-5 PR2500/ PR2501 13â X35 0-6 PR2002 13â X300/ 325-8 PR2400/ PR2401/ PR2401-1 13â X400-6 PR2403/ PT2403-1/ PR2403-4 13â X500-6 PR2407/ PR2408 350-7 PR2502/ PR2502-1 14â X350-8 PR2601/ P R2601-5/ PR2602/ PR2603/ PR2604/ PR2604-1/ PR2605/ PR2606 16â X400-8 PR3000/ PR3002 / PR3003/ PR3004/ PR3006/ PR3006-1/ PR3006-2/ 16â X450-8 PR3007 18â X650-8 PR3008 / PR3010 markets: Colombia Mexico Peru Canada Brazil Poland Venezuela Spain Ukraine Pakistan Italy Iran India Taiwan Greece etc we welcome you to come for a visit and look forward to your reply..