I know its short notice, but there's going to be a charity ride this Sunday. (Sept 30)
There's going to be multiple distances supported including 5, 10, 25, 50 and a 62.5 mile rides.
There is also a 1 mile walk/ride for the kiddies and charity tricycle races.
More info here: www.bike4thebrain.org
Hope to see you there!