Powerfly 4 Sport Equipped outfits our most affordable electric mountain bike with everything you need for rugged daily commutes and trail adventures. It's built with sturdy parts, like a 9-speed Shimano drive train and a 120 mm SR Suntour fork. And it features a powerful Bosch Performance CX motor and our user-friendly Removable Integrated Battery (RIB) system. You also get commute-ready accessories like mudguards, a rear rack and front and rear lights that are powered by the e-MTB system.

You want an e-bike that can do double duty as a rugged commuter and a trail-worthy hardtail mountain bike. You want a lot of capability, quality and user-friendly features for an affordable price and you can't wait to go on bigger and better bike-fuelled adventures.

A durable Alpha Platinum Aluminium frame that fully encases a long-range 500 Wh battery for sleek looks and protection on the trail, a Bosch Performance CX (250 W, 75 Nm) motor that assists up to 25 km/h, an ergonomic Bosch Purion controller, a Shimano drive train, a 120 mm SR Suntour XCM fork with lockout and hydraulic disc brakes. Comes equipped with mudguards, a rear rack, and front and rear lights powered by the Bosch battery. Plus, Smart Wheel Sizing means you'll get the fastest wheel that fits - 29? wheels on larger frames, 27.5? wheels on smaller frames.

Affordable, versatile, capable. This e-MTB is great for commuting, trail riding and rugged touring. It comes with dependable performance parts and a high-end Bosch motor, RIB battery system and controller that are as reliable as they are easy to use.
- Trek's Removable Integrated Battery (RIB) system looks great and is super user-friendly: it fully hides the battery in the frame for protection, makes it easy remove the battery without tools and lets you mount a water bottle cage
- This bike expands boundaries: the top-notch Bosch system is equally suited to commuting, recreation and a ridiculously fun time on the trails
- The Purion controller has Walk Assist and an intelligent eMTB mode that automatically delivers the right amount of power based on your terrain
- It's equipped with an external charging port for easy charging on or off the bike
- It comes equipped with lights, mudguards and a rear rack so you're ready to ride right from the start

Will my bike have a curved top tube?
Smaller frames (S) have a top tube that dips down as it approaches the seat tube. This design makes for a lower standover height, which is good for shorter riders because it allows them to straddle their bike more easily. The larger frames (M and ML) have a straight top tube because taller riders with longer legs typically don't have the same issues with standover height.

New Bosch Performance Line CX
The all-new Bosch Performance Line CX motor is lighter, smaller and quieter than previous versions, for cleaner integration and more nimble handling. It's also more efficient so you can go further on a single battery charge. Use the intelligent eMTB mode to automatically adjust the amount of assist to match the terrain. It's a set-and-forget mode that delivers just the right amount of power 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.

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.