The Trek Powerfly 7 is a versatile and powerful electric mountain bike that’s been refined over the years. Now in its fourth generation, it wears the Gen 4 name tag.

Built around a powerful Bosch Performance Line CX motor and large capacity 625Wh battery (a genuine Bosch model), the Powerfly 7 is perfectly equipped to tackle the steep hills of Devon and the surrounding areas. It also features Trek's user-friendly 'Removable Integrated Battery’ (RIB) system that fully encases the battery in the frame, yet doesn't require tools for removal – just a key..

Using Trek’s proven Smart Wheel Sizing system, the frame size is matched to a suitable wheel size. This keeps the proportions correct, aiding both the fit and handling. Five frame sizes ensure a no compromise fit for most rider heights.

The Powerfly 7 is the premium spec model in the Powerfly range. Upgrades such as a stouter, more refined suspension fork and a dropper seatpost, boost performance. A Bosch Kiox 300 display and controller ensure you get the best from the Bosch Smart System –giving you more info, metrics and fine-tuning options.

Our Verdict: The Powerfly 7 is ideal for multi-surface exploring. The spec upgrades on this model make it the perfect choice for riders looking to tackle more technical mountain bike trails.

Read more in our Buyer’s Guide to Electric Bikes

KEY FEATURES AND BENEFITS OF THE POWERFLY 7 GEN 4

• Alpha Platinum Aluminium frame, with a lifetime warranty. Five frame sizes ensures a dialled fit for efficiency and comfort.

• RockShox 35 Gold RL fork is air-sprung, with more damping refinement, boosting performance in rough and challenging terrain.

• 120mm suspension fork travel, with 80mm on size XS bikes.

• The Bosch Performance Line CX motor has ample power and torque to deal with steep hills, heavier riders or a bike loaded with luggage.

• The Bosch Kiox 300 Smart System is fully connected and always up-to-date thanks to regular updates over-the-air.

• Shimano SLX/XT 1x12 drivetrain gives you a wide gear range. The gear shifting is intuitive to use and the components robust, reliable and proven.

• SRAM DB8 4-piston hydraulic disc brakes are powerful, reliable and work well in wet and dry conditions. With no brake cables they are sealed from the weather

• Tubeless-ready rims and tyres are standard on the Powerfly 7. Just add suitable rim strips, valves and sealant for a full tubeless set up.

• A dropper post (stroke varies depending on frame size) boosts confidence on steeper descents and rolling terrian.