2011-04-03 Sun - Cambridge ride. Fixed-wheel bicycle required

I'd like to come but feel similarly to Stonehenge in that I've not been riding fixed for long and worry I might not be quick enough. Also, are there any other women riding?

I'm a girl and not the fastest - this is also my first forum ride and I'm very much encouraged by all the reassurances of no one getting left behind. Come! Us girls/new kids can stick together if you want!