Beautiful Bike, 4-banger two stroker......lotta pages of pics, I think he built the engine not for sure though. Build is documented w/ pics. I skimmed though....looks like he did it all w/ a manual Bridgeport and lathe. Impressive. There is a button to translate the pages.... http://www.2t-special.it/forum/viewtopic.php?f=14&t=498&start=20
That was the previous version. Ultime version with home made Rolling chassis and engine is here : http://www.2t-special.it/forum/viewtopic.php?f=14&t=5700&start=200 Enjoy