I don't get to watch British racing but I saw this crash on a sports show in the US. According to the MCN website the rider only had a broken wrist from this. I hope that was the only injury.

http://www.youtube.com/watch?v=PFOleuENf70&NR=1

http://www.motorcyclenews.com/MCN/sport/sportresults/British-Superbikes/2009/August/aug1009-BSB-Brands-Hatch-Chris-Martin-crash/?&R=EPI-117469

His team's website says that he broke his ankle and possibly some vertebrae too.

http://www.gearlinkracing.com/page5.htm

Yeah, I saw that..... that track is a bit tight when it comes to crashing...... need a bit more room.