a motorbike is easier
 

I can wheely a mountain bike a little way, but used to be able to wheely a motocrosser much further, with one hand, round shallow bends, etc. Picked it up in 2nd or 3rd, kept accelerating and changing up to 6th. Front wheel used to stop spinning, and then there was no gyroscopic effect. Landing it sounded like a plane: loud squeek as the tyre accelerated up to speed! Probably can't do it any more... too old and chicken to try now, and only have the SV650S, which isn't ideal...

http://i124.photobucket.com/albums/p...jononehand.jpg

http://i124.photobucket.com/albums/p...jonnohands.jpg

http://i124.photobucket.com/albums/p...onhighjump.jpg

Jon.