Just emailed the Herne Hill head honcho (thanks for the tip Winston), I've asked him if there's a free Sunday in late April/May, if he'll let us use their bikes (for those that need them) and if we can have an induction pre-event for those that haven't ridden there before (like me! I've only ever spectated at HH)...

Let's see what he says, we'll take it from there... :-)