This is Dave's (or "Stan the Biker" on the forums) bike. This is the result of a collision with a large truck or "lorry" as they say across the pond where Dave is from. Thankfully, he's OK and healing well. Also, as he heals, he's working on getting his Cat back together again!
This is the only picture Dave had of his ride when it was in one piece. **sigh** Here's to better times down the road Dave! Cheers.
If you can handle it, there's more gore here.