Here are a few:

http://www.zweknu.org/pics/gal.rhtml..._2005_0003.jpg
http://www.zweknu.org/pics/gal.rhtml...005_2_0000.jpg
http://www.zweknu.org/pics/gal.rhtml...now_1_0002.jpg
http://www.zweknu.org/pics/gal.rhtml..._square001.jpg (the handle bar on the left counts, right?)

Red Bull Bike Battle trials stuff (bad camera though): http://www.zweknu.org/pics/gal.rhtml?alb=redbull01
Probably the only decent shots in that mess are http://www.zweknu.org/pics/gal.rhtml...ow=bike136.jpg
http://www.zweknu.org/pics/gal.rhtml...ow=bike137.jpg
http://www.zweknu.org/pics/gal.rhtml...ow=bike133.jpg
http://www.zweknu.org/pics/gal.rhtml...ow=bike142.jpg

Some shots of Kissenna: http://www.zweknu.org/pics/gal.rhtml...e_nyc&start=24

Snow biking: http://www.zweknu.org/blog/index.rht...&c=T&ft=T#p686

(note, all the photos are available in higher res except the Bike Battle shots)