The Trek Powerfly 4 is a multipurpose hardtail e-mountain bike designed to increase the accessibility and enjoyment of trail riding. Its aluminium frame combines smooth, user-friendly pedal assistance with stable, confidence-boosting geometry to help flatten climbs and increase your range on extended rides. The balanced handling makes it simple to maintain control on both trails and backcountry paths, while the hardtail shape maintains the bike responsive and efficient on varied terrain. The Powerfly 4 is a capable, user-friendly introduction to e-MTB adventures, designed for riders who desire dependable electric assistance without overcomplicating the ride.

The 2022 Trek Powerfly 4 is built around a robust aluminum frame and a powerful, reliable Bosch drive system. Its key features focus on integration, durability, and user-friendliness.

• Robust Alpha Platinum Aluminum Frame: The frame is constructed from Trek's high-end Alpha Platinum Aluminum, known for being lightweight, stiff, and durable . It features Motor Armor, a protective shield on the downtube to guard the motor from rock strikes .

• Powerful Bosch Drive System: It's equipped with a Bosch Performance Line CX motor (250W, 85Nm torque), which is widely regarded for its natural and powerful assistance, making climbs feel effortless . It's paired with a Bosch PowerTube 500Wh battery.

• User-Friendly Removable Integrated Battery (RIB): Trek's RIB system fully integrates the battery into the frame for a sleek look and protection, yet it can be removed tool-free easily thanks to an integrated handle . It also features an external charging port, so you can charge the battery on or off the bike .

• Trail-Ready Components: The bike comes with a 120mm SR Suntour XCM 34 suspension fork with a lockout feature, a 10-speed Shimano Deore drivetrain for reliable shifting, and powerful 4-piston Tektro hydraulic disc brakes with large 203mm rotors for confident stopping power .

• Versatile Design: The frame includes mounts for racks and fenders, making it easy to accessorize the bike for commuting or light touring, in addition to its trail capabilities.

A proper fit is crucial for control and comfort, especially on an e-MTB. Here are the details for the medium frame.

• Rider Height Recommendation: The size Medium is generally recommended for riders between approximately 5'6" and 5'9" (168cm - 175cm) . (Please note that height recommendations can vary slightly between sources).

• Wheel Size: 29" .

Key Geometry Details (Size Medium)