①→ sm1085896 ②→ sm1085936 ③→ sm1085992 ④→ sm1086015 Motogp China Rd. 4 2007→ http://www.veoh.com/videos/v471402xT4XfMWg?searchId=8122460839656457779&rank=0
http://www.nicovideo.jp/watch/sm1085936