This does need a bit of stealthly fine tuning however this game does work especially well on corners.
When you see peds stepping out onto the road without seeing you, just clip them slightly on their shoulder as you ride by. Timing and speed has to be of military precision, too much of a shoulder brush and you will bounce off them, making for a spectacular "self-induced" wipe-out!
The joy of hearing their scream of surprise when you've just skimmed them and they didn't even see you coming! Even better if they need a chance of underwear afterwards!