http://electricbikereview.com/specialized/2013-turbo/ Sturdy, thoughtfully designed, fast and efficient. The first electric bike from Specialized! It isn't cheap but the electronics work very well, the bike feels solid with through-axles and oversized slick tires and the bike can reach speeds of ~28 miles per hour. Only offers pedal assist, no throttle mode. This review is for the 2013 Specialized Turbo electric bike.