Here are some screen shots from Bells, and then a video in which Jenna says after shooting, "I wanna bike, I wanna motorbike!" Very cool.
Apparently Jenna wasn't kidding about wanting a motorbike as she is the one riding in Day of The Doctor, the 50th anniversary special that came out this fall. Here are some screen shots from that one:
She's on the bike this time. I couldn't find anything online about whether or not she's gotten into biking or not. I guess I'll have to wait until she's on Top Gear, they'll get it out of her!
There has been a lot of talk about this in the UK press:
http://www.independent.co.uk/arts-entertainment/tv/news/doctor-whos-3d-50th-anniversary-special-will-be-like-the-bourne-identity-with-motorcycles-8538617.html?action=gallery&ino=1
http://www.justjaredjr.com/2012/10/18/jenna-louise-coleman-motorcycle-ride-with-matt-smith/
http://www.mtv.co.uk/news/doctor-who/376568-doctor-who-motorbike-picture-matt-smith-jenna-louise-coleman
http://www.bbc.co.uk/mediacentre/mediapacks/doctorwhosevenb/jenna-louise-coleman.html
http://www.dailymail.co.uk/tvshowbiz/article-2218527/Matt-Smith-shatters-Tardis-illusion-rides-open-doors-Doctor-Who-shoot.html
http://www.motorbiketimes.com/news/people/celebrity/dr-who-stars-pictured-riding-down-the-shard-on-triumph-scrambler-$21382079.htm
http://www.motorcyclenews.com/mcn/news/newsresults/general-news/2012/december/dec2412-ten-best-doctor-who-connections/
Jenna's Tumbler also has some great images: