Powercranks are a topic that comes up in many online discussion boards. It is hard to imagine one product with more surrounding controversy. Here are links to some of the more lively sites with threads about PowerCranks. By far the most active "PowerCranks forum" is found at Slowtwitch.com, followed by cyclingforums.com, others with interesting discussions we know about include velocitynation.com, cruciblefitness.com. Links to particularly "interesting discussions" are below. If you read them you will find there are certainly some very vocal critics of PowerCranks out there, but what we have noticed is that many of the critics have NEVER ACTUALLY TRIED OR USED POWERCRANKS, or if they have, it was briefly, and certainly not with the kind of training determination neccesary to reap the scientifically proven benefits. Anyhow, we have nothing to hide. Listen to the arguments of the critics and compare them to what we say, to the studies, and to the reports of actual users and make your own decision. Or, better yet, try them yourself and make your own decision.

Here are some links to some of the more "heated" discussions.

Slowtwitch.com: Liar Liar Pants on fire? :-) (828 posts)
Slowtwitch.com: Drills vs PC's (686 posts)
Slowtwitch.com: I got my ass beat by Joaquin riding his PowerCranks up La Morcuera with a Powertap (544 posts)
Slowtwitch.com: Powermeter or PowerCranks, which is more useful (283 posts)
Slowtwitch.com: Help Quantify the debate (146 posts)
Slowtwitch.com: PowerCranks: No brainer? (145 posts)
Cyclingforums.com: pealing push up push down (431 posts)
Velocitynation.com: PowerCranking (article with about 60 comments)
Cruciblefitness.com: My PowerCranks training experience (31 posts)