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Pneu moto explication
Source google image: http://1.bp.blogspot.com/-fynt10CwRfg/VRrvZW8CROI/AAAAAAABunQ/CRu14ulPKR0/s1600/w2015ouvre-boite%2Bd%C3%A9monte%2Bpneus%2Bmoto%2B(1).jpg