While I agree with @Udi that size does matter, I wonder what the real cost between the two would be ($1000? $1500?) for pretty similar geometry and technology. And while you're certain to be marginally faster on bigger wheels, is that worth it to you?
For tires, what treads are you interested in? Almost everything is a DHF copy, so why not go with the real thing for half the cost?
For tires, what treads are you interested in? Almost everything is a DHF copy, so why not go with the real thing for half the cost?