Powerfly LT 4 is a long-travel electric mountain bike with a 150 mm fork and 150 mm of rear travel. It's made for real-deal mountain bikers who get rowdy on rugged trails with mid-fat 27.5+ tyres, a powerful Bosch motor and a durable trail bike spec. Plus, Trek's Removable Integrated Battery (RIB) system gives you better balance on the trail, great looks and exceptional ease of use.

Standard suspension doesn't cut it for the trails you ride. You're most likely to be found on technical trails with big drops and hits, so your e-MTB needs longer travel, a durable parts spec and a pedal-assist system that can keep up.

A durable Alpha Platinum Aluminium frame that fully encases a long-range 500 Wh battery, a powerful Bosch Performance CX drive system that helps you sustain speeds of up to 25 km/h, and an ergonomic Purion controller. Plus, 150 mm of front and rear suspension with an SR Suntour Zeron fork and RockShox Deluxe RL shock, mid-fat 27.5+ tyres for traction and stability, a dropper post, 10-speed Shimano drivetrain and 4-piston hydraulic brakes for extra stopping power.

With Powerfly LT 4, you're getting a great frame with a powerful Bosch system that will take your riding to places you've only imagined. But it's the longer travel suspension and mid-fat 27.5+ tyres that give Powerfly LT 4 extra capability on rugged terrain, sketchy trails and steep descents.
- Longer travel suspension and 27.5+ mid-fat tyres are the perfect combination for traction, stability and capability on rough trails
- For e-MTB, full suspension is a game-changer: it soaks up rugged terrain, so you can ride the Bosch pedal-assist system to its full potential
- It's equipped with an external charging port for easy charging on or off the bike
- It rides like a mountain bike because it is one: it has the same frame and suspension tech that we've refined in our decades-long trail heritage
- The Purion controller has Walk Assist and an intelligent eMTB mode that automatically delivers the right amount of power based on your terrain

Bosch Performance Line CX
Bosch's Performance Line CX motor is made specifically for off-road use with more torque and power for better acceleration. The intelligent eMTB mode automatically adjusts the amount of assist to match the terrain. It's a set-and-forget mode that delivers just the right amount of power. You get optimum control, traction and battery life so you can focus on enjoying the ride.

Removable Integrated Battery
RIB is a one-piece battery and cover with a built-in handle that can easily be removed and re-installed in the frame with no tools and no hassle. It's the most convenient way to remove your battery for transport, security or just easier charging.

Active Braking Pivot
Active Braking Pivot allows our engineers to tune how the suspension reacts to acceleration and braking forces independently. That means you get more confident control when you need it most.

Straight Shot w/Knock Block
Trek's Straight Shot frame design optimises the stiffness-to-weight ratio for a more responsive ride. You'll be able to push harder and stay more planted on your line when the going gets rough.

What is the range?
To see how far you can ride your electric mountain bike on a single charge, check out Bosch's range calculator. We've auto-filled the variables for this bike model and the average rider, but you can make adjustments to get your most accurate estimate.