Just my opinion here...but I love my Shimano Ultegra SPD-SL's. I started out on 2-bolt SPD's on my first bike...rode 'em for a year until I couldn't take the foot pain anymore. Switched to a road pedal (Time RXS) on my 2nd bike and ended up selling that bike (along with the pedals on it). When I got my current bike, I bought the Ultegra pedals and haven't looked back. Plus a big bonus...no more foot pain, which makes my feet about the ONLY body part that doesn't hurt me when I ride.

Linda