I don't know how many of you follow Baron von Grumbles antics on You Tube but in case you don't he's just (well Bahnstormer have) completed a rebuild of a crashed HP4 he bought. I don't know how or even if I can put a link up but if you go onto You Tube there's 2 videos, one from a few weeks ago giving the story of the bike and one he's just posted today showing the rebuild, also a pretty smart looking HP4 track bike appears near the end too...