For a beta physics mod this is fantastic and already miles better than vanilla physics, the seamless gearbox is a god send and I love how slidy the rear end feels when you're pushing hard under braking, my only complaint so far is that perhaps the kerbs just need a minimal bit more grip.
Sure i'll fix that! I'm taking more time to release the new version because i want to release some 1.0 version... so now i'm polishing the bike physics and the AI behavior... So stay tunned ;)