Slowpoke
Husqvarna
AA Class
That Beta 2T is the 50cc machine I believe, they have been building those for a while ( I love those tiny things) and these small manufacturers seem to all be onto the 125 4T thing too. Fantic has those 50cc and 125cc machines as well as HM moto. It's amazing what the broke country of Italy is doing in the moto world. (and the car world to) . I know I posted this before somewhere, it's just too fun not to post it again. 50cc 2 stroke enduro competition, now you know how the EU builds WEC champions, and wicked little 2T screamers.
http://www.youtube.com/watch?v=Zfcrm6PbWj4
125s teach you about 'momentum', but these little buzzbombs take that to a whole new level

When you're used to hearing only bigger cc bikes, it sorta sounds a bit disconnected listening to them as they make a lot of racket for the speed they're going; almost like someone overdubbed the sound.

I bet they're a hoot to ride.
