The 2021 Trek Powerfly 4 Gen 3 is an entry into e-MTB riding that combines Trek’s proven trail geometry with Bosch’s reliable pedal-assist system. Its durable Alpha Platinum aluminum frame integrates a 500Wh battery and Bosch Performance CX motor, delivering smooth, natural-feeling power for climbs and long days on the trail. With a 120mm suspension fork, wide-range Shimano 10-speed drivetrain, and powerful hydraulic disc brakes, it’s equipped for both rugged off-road adventures and everyday trail rides. Practical touches like Trek’s Removable Integrated Battery (RIB) system make charging and battery swaps easy, rounding out a capable and user-friendly e-MTB.