My GF is pretty fast, especially when she wears the Rapha jersey I bought her last year. I have one of their base layers, but I am not fast, except when I tour, at least in a relative sense, because I am always passing other touring cyclists I meet. Like last year in SD. I encountered a bunch of kids and their leader on the Mickelson Trail. They were walking up one of the climbs. After bumming some snacks from them I droped the hamer and left them in my trail dust. Poor kids could not have made it to Hill City before dark because it was nearly dark when I got there and I reached into my suitcase of courage and took all sorts of risks on the descent into town.