I'm currently running Crank Brothers Candy 3s on my Ridley Noah. http://ridingagainstthegrain.com/2012/04/21/ridley-noah-review/
because, frankly, it’s convenient to have crank brothers cleats on all of my bike shoes (road, mountain and winter), so I can jump from bike to bike. In the immediate aftermath of that post, however, I’ve had a couple forum jockies post comments, and I’ve received a few blog comments and emails (some rather strongly worded, so I haven’t permitted them to post through) criticizing this practice. The gist of the comments is that I should convert to a larger road platform pedal, for greater pedaling efficiency.
Is there really a performance or efficiency advantage going from a mountain pedal (basically, an eggbeater with a small platform around it) to a road pedal? My road shoes are carbon fiber sole (Bontragers…either RL or RXL–can’t recall off the top of my head)…so there’s not really a ton of flex there. And I see that some pros run speed plays, which are just as small, if not smaller, of a platform as my Candys. And the Candy’s are reasonably light–so there’s not going to be a ton of weight difference (if any).
Any subjective reports of "I switched and felt a difference"? Or even better--any objective testing on this issue?