Osymetric chain rings. Is there any advantage?

[JFK]

Is anyone aware of any scientific comparison between Osymetric and normal blades? It seems like everyone (including some of the hubbers who has commented above) who claims they improve performance, also say they have no data or stats to support their claims.

[Gandalf]

It would be cool to test it out for a few weeks as previous poster says it takes about 3 weeks to get in the swing of things. But ja I dont have cash to buy that and then not like it. Anybody got an old set one lying around for mtb?

[JFP.Urbike]

Is there anyone of you with first hand experience who can tell me if these really give you an advantage? I've seen claims of 10% increase in kw and that they are supposed to encourage the "back-pull". Also eliminating the "dead spot".

 

I've had a short 10 minute ride on a bike with osymetric chain rings, but to me it seemed like "dubstepping" your pedal action and confusing your front derailer while you're hopping down the road.

 

Any opinions?

There definitely is a period of time that it takes to get used to them... Most of us took a little longer than ten minutes to learn to ride a bike in the first place. According to some sources, they reckon about 2 to 3 one hour rides and you wont even know you are riding them....until you see your increased available wattage at threshold that is...

[FC&P2C]

reminds me a bit of those power balance bracelets

at least they didn't affect your front derailleur!