I didn't see any ex-works bikes there only replicas, the smaller 4's are usually based on 400 & 500's I posted on another thread one based on the Yamaha Diversion engine ina custom frame. The even smaller 250 replicas are CBR250 engine with a custom frame but after seeing one I didn't recognise I spoke to the owner who told me it was a CBR250 engine in a modified CB72/77 frame. The parade laps with just 4 cylinder Hondas was indeed a sight and sound to remember, I managed to record a video on my phone, will try to put it online if any good, just checked on YouTube to see if it anyone had uploaded one but no luck.