The Van Rysel RCR-F is a clear step up in performance over the RCR Pro. It's faster, stiffer, and feels a lot more ...
Best pedals for a road bike: 10 clipless pedalling systems for road cyclists - Including options from Shimano, Look, ...
While the M520 lacks the flash of premium options it does basically the same thing for a small weight penalty in a package that'll take years of abuse.