philly1x wrote:
RowToTri wrote:
The sole looks just like the road 7 sole, which I think is among the very best in the whole industry and they say they behave stiffened it up. I bet you could use it to jack up your car.
The S-Works 7 vent has FACT 13 carbon sole. The standard S-Works has FACT 15 sole. So, yeah, I think you're right about stiff soles on the new Ares. But I won't try jacking my Nissan with them.
Subjective: my Shimano S-Phyre 9 shoes (with the relative stiffness rated at 12) feel more stiff than my S-Works 6 (also FACT 13), FWIW.
There's no standardized stiffness scale. You can't really compare those numbers between manufacturers.
It's not even clear that within a manufacturer that the scale has any meaning beyond one sole is stiffer than another. Is a shoe rated 11 10% stiffer than a shoe rated 10? Who knows? It's all just marketing.
I'm thinking about rating the soles on our shoes at 16, just so we can be the stiffest. [/pink]
Edit - Also, stiffness alone is not the most important aspect impacting performance of a sole. It needs to be stiff *enough* and have that stiffness in the right place. Extra stiffness is not helpful. And what is stiff enough? In many ways it's kind of personal preference. As long as you are not getting plastic (permanent) deformation, or dampening/losing energy to heat generated in the sole (honestly, that is not a problem with any shoes but people talk like it's a big thing) all you need to worry about is does it feel right to you. When you sprint does the flexiness bother you? Get stiffer shoes. It doesn't bother you? No problem. The shape design and manufacturing method to give the required stiffness where it is needed, not providing it where it is not required, and using a manufacturing method that provides that in a combination that makes it light and affordable and in a shape that fits and with a range of cleat positions that works are all much more important.
Finally - and we are the only ones considering this - the shape of the sole is very important for aerodynamics.
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Ed O'Malley
www.VeloVetta.com Founder of VeloVetta Cycling Shoes
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