Wednesday 12 January 2011 11.14am
There also used to be a place in Wimbledon, using the car park of the dog track. Think it was called Elite (but not sure as it was a while back for me - and before these new-fangled tests that they have nowadays where you have to try and kill yourself pulling stunt stoppies).
There's a decent forum called Londonbikers.com which will have loads of threads similar to this, and which might give you all the help you need.
...if you press it, they will come.