Well I bought the specialized...I now have to learn how to ride a bike again. I am so used to a MB I am in big trouble!! I wobbled all over the place and couldn't even work out how the gears changed. Not my best moment. Tried it yesterday for a quick spin, and was fantastic. So much faster, wind whistling fast!! Did find that the bumps etc were a bit unforgiving though!! Anyhow I took the plunge...