Anyone know what this bike is?

[Mr. Peanut]

Better still - you can get the same trick stuff (or a lot of it anyway) for the TZR250!

It's a shame it's so slow huh..

[imdying]

Still not convinced... it's still looks too much like an RG500/RGV250 cross breed to me. If it wasn't for the video title, there'd be not doubt in my mind. It's the bracing around the headstock, and the definite RG swingarm/torque arm/under slung caliper that makes it hard to believe it's something else. Wheels and tyres also seem a bit wide.

/edit: Doesn't sound single cylinder either, has that 4 cylinder growl as oppossed to a single cylinder ring a ding ding.

[Mr. Peanut]

Two expansion chambers on that kit and slightly different pipe lengths on the end, that could account for the desyncronisation on the exhaust pulses. Making it sounds like a four cylinder.

I WANT ONE!!!!!!!!! ( I could use one on each cylinder for 8 exhausts total )

[imdying]

That's one crazy expansion chamber(s)...

[texmo]

Man that is awesome where do I get one and how much?

[nudemetalz]

Nope,...I watched and listened to that video again. I am convinced it's a 500 4-cylinder sound, and that is an RG500 frame for sure. Just has some TZR bodywork on it.
As an ex-RZ-500 owner, those 4 cylinders have a sound of their own.

[onearmedbandit]

My vote is RG500 with around the 'M' series RGV250 tail section. Certainly looks and sounds that way.