Well if somebody built a 2 stroke bike, with all the technology needed to prove they can pass emissions.And they still want them to jump through hoops, they are just being awkward.You know what i mean.It's more cost effective and has less pollution to build a 2 stroke, than to build a duracell powered bike ( and safer think battery acid ) that you have burn none exsistent coal for to run it.There is technology out there like bikes using 80% less 2 stroke oil to run it, because it's DFI is that accuarate.You could put a 24 litre fuel tank on a 2 stroke dakar bike but that wouldn't be nessarsary.Because they are that fuel effiecient.There are engines also that are half 2 and 4 stroke aswell ( don't know how this works ).
Have a read of this article
http://www.forzacentral.com/forum/t...echnology-creates-a-four-stroke-beater.38087/
I say screw 4 stroke bikes, they are just boring.