Korean Yamaha

Saw this video from a link over at yearroundriders.com. It looks kinda like a street-legal trials bike, if that's even possible. Supposedly Yamaha makes an off-road version too.

https://www.youtube.com/watch?v=1o4uq36I4WQ

The second bike to appear in that video was the production version, called the Tricker.
Wasn't imported into the USA, although the current XT-250 that is sold in the USA is based on that Tricker.

Here's a link to a "concept" bike (never saw production, but built to check out an idea) called the Air Tricker, from 2005.
Engine was from a YZ-250F:

http://media.onsugar.com/files/2011/02/05/5/1345/13452280/d2/yamaha_air_tricker_concept_2005_1.jpg