This is probably a stupid question, but....

Teawoman, what kind of pedals are you using? If you're not using some sort of clipless pedal system or toe clips, this would explain why you're having trouble getting your cadence up. Heck, a cadence of 85 without the benefit of toe clips or clipless pedals would be amazing!

You've received some great advice on this thread. Riding a bike is pretty much like anything else you do -- the more you do it, the easier it becomes. So keep on pedaling!

-- Melissa

PS 13mph on the flats is nothing to scoff at, especially on a hybrid.