2019 Trek Powerfly FS 7 Plus is a full suspension mid-fat electric mountain bike with a fully integrated battery and a performance suspension package for incredible capability on more rugged trails. A Bosch Performance CX motor for speeds up to 20 mph, 27.5 mid-fat tires for extra stability and traction, RockShox suspension, and the latest in e-MTB frame design will bring your off-road adventures to entirely new places.