No matter what I think about tires, I like idea of power assisting pedaling. You get Graves muscles on cranks. Not throttling..
http://m.vitalmtb.com/photos/features/First-Ride-Specialized-Turbo-Levo-The-X-Factor,9143/Slideshow,0/iceman2058,94
http://m.vitalmtb.com/photos/features/First-Ride-Specialized-Turbo-Levo-The-X-Factor,9143/Slideshow,0/iceman2058,94