Obviously every argument has an extreme. We like to tell the 26" 29er naysayers that they should try 20" wheels if smaller wheels accelerate well. The coker or that monstrosity is what they should point to.
Somewhere there is a happy "sweet spot". And it's probably that the sweet spot is different for disparate riding styles and rider sizes. For example, I think that free-riders and dirt jumpers would be poorly served by 29ers. When your riding consists of jumping off things and doing tricks, strength and agility are paramount. By contrast, downhillers would probably benefit from the ability to roll over rough terrains better.
Honestly, for smooth pavement that coker is probably overkill. Though, they are still cool.
With dirt jump, actually the only real problem I see is bike length. But especially wheel/ramp radius matching too closely. See those football wheel, they'd stop DEAD on a big skateboard quarterpipe. Dirt jumps are short-radius, and ask for small wheels to be able to roll through it.
But yes, it's the same guy, ans he's famous for doing what he does. He's got sponsors and all.
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