Olympic Games Lanes

The top of Baker Street where Regents Park joins has been closed which is very helpful for cyclists wanting to go through the West End after a few laps of Regents Park. No room to even squeeze a bike through so pavement riding is necessary.
I am still trying to figure out what you are supposed to do round Buckingham Palace and Bird Cage Walk. Again, cycling on the pavement may be the only sensible option

Tried turning out of the outer circle at the mosque?