So you're making a motorcycle compilation cassette - what do you start with? This'll do for a kick-off. Read about Milan aka The Leather Boy here. After that you could have Davie Allan and the Arrows 'Blues theme' - add a dash of a few trailers from the Wild World of Mondo Movies and a Gene Vincent track - dunno - got any other ideas? Don't say Leader of the Pack it'll kill the mood... I am thinking 'On the Road Again' Canned Heat - they were very popular among Hell's Angels and I can imagine that would be the one to choose.