Hello people!! Basically I get a phoncaall from a mate on Monday morning telling me his bike has blown up, it locked the back wheel doing about 60 with him on it :s So yesterday I went to have a look, I found it Definately has blown up, I think a valve has got stuck open, or not been shutting fully and has basically hammer it's way through one of the pistons!! It Definately needs a new piston, probably best to get the pair?? And I'd say a new head as it does appear to have some damage, anyways here is a picture of the piston, http://i1249.photobucket.com/albums/hh509/B8zey155/afa73142d10b8e650567a78252f521c8.jpg What would you guys do??