Has it ever been done? I nipped out to Tesco just now for a bottle of milk and I got accosted by this *huge* merkin who insisted on telling me about the bikes he had had. He told me about one that started as an 1100, had the sleeves pressed out and replaced with Renault internals making it a 1600 which would pull a chair at a terminal velocity of 180(??) over the quarter. Was he totally mad or just a Vietnam vet still having problems with reality.