That's a electric bicycle.
Maybe its a Pinarello Doggie, bikes are way cool, not as cool as fighters, and the Chinese people do a good job building lots of high end bikes, esp carbon fiber and titanium. I did 20 miles on my Cannondale Caad 7 this morning before breakfast, awesome. I suppose I relate somewhat to the Chinese way of doing things, my buddy has an old bike with lots of do dads, I have a nice bike with fewer do-dads. The J-20 like our own ATF has the ability to operate off of unimprove or battle damaged airfields, as that was one of the design criteria of our own ATF, it could come in very handy sometime, and lots of thrust and good wing area seem to help the J-bird get off the ground in a robust fashion. Now to the PLAAF, could we have some more neat videos of 2002 please, we promise not to give away any state secrets, right guys?