Mule Bar Girl, a team that was due to take part, has been informed that if Nocturne organisers receive a sufficient amoung of support, they'll take on BC and run the race anyway. It'll take you two minutes to email them, especially if you simply copy and paste the following message, so please take the time to do so.
Dear Sir or Madam,
I was upset to read that British Cycling has requested the women's race at the Smithfield Nocturne be cancelled. Nocturne has become so popular that it's now one of the premier showcases for the sport in this country and with women's cycling receiving so little exposure and facing serious problems due to lack of sponsorship, it's simply become too important an opportunity to increase exposure to be missed.
I have heard that, should you receive sufficient support, you will go ahead and run the women's race in spite of British Cycling. I hope very much that you will do so.
<your name here>