The Powerfly 4 625 takes our most affordable electric mountain bike, and gives it a boost with a longer-range 625 watt-hour battery. Of course, you still get our user-friendly Removable Integrated Battery (RIB) system that's super easy to remove and reinstall, plus all the other parts that make Powerfly 4 your ideal entry into the joys of riding a pedal-assist bike on or off road.
You're sold on the e-bike revolution and want the capability and versatility of a mountain bike at a price that doesn't resemble the car you're trying to use less. You want bigger, better off-road adventures, and know that an e-MTB with the latest user-friendly tech is the best way to get them.
A tough yet refined aluminium frame that fully encases a long-range 625 Wh battery for sleek looks, a Bosch Performance CX (250 W, 85 Nm) motor that assists up to 25 km/h, a Bosch Purion controller, a 1x10 Shimano drivetrain and a suspension fork with lockout. Plus, Smart Wheel Sizing means riders of every size get a great fit ? 29? wheels on larger frames, 27.5? wheels on smaller frames.
This model gives you longer range battery than the standard Powerfly 4, so you?ll never be short on fun.
- 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
- You can boost your Powerfly?s utility by adding a rack and mudguards, plus built-in wiring lets you easily install lights powered by the motor
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.
|Frame||Alpha Platinum Aluminum, Removable Integrated Battery (RIB), tapered head tube, Control Freak internal routing, Motor Armor, Boost148, 12mm thru axle|
|Fork||SR Suntour XCM 34, coil spring, preload, lockout, tapered steerer, 44mm offset, Boost110,|
|Head Set||FSA IS-2, 1-1/8 top, 1.5 bottom|
|Stem||Bontrager alloy, 31.8mm, Blendr compatible, 7 degree, 70mm l|
|Handle Bars||Bontrager alloy, 31.8mm, 15mm rise, 750mm width|
|Tape/Grips||Bontrager XR Endurance Comp, lock-on|
|Brakes||Tektro HD-M275 hydraulic disc, 203mm rotors|
|Tyres||Bontrager XR3 Comp, wire bead, 30tpi, 29x2.30|
|Rear Derailleur||Shimano Deore M5120, long cage|
|Shift Levers||Shimano Deore M4100, 10 speed|
|Cassette||Shimano Deore M4100, 11-46, 10 speed|
|CrankSet||FSA Bosch CK-220, 36T ring, 165mm length|
|Pedals||VP-536 nylon platform|
|Front Tyre||Bontrager XR3 Comp, wire bead, 30tpi, 29x2.30|
|Rear Tyre||Bontrager XR3 Comp, wire bead, 30tpi, 29x2.30|
|Saddle||Bontrager Commuter Comp, 165mm width|
|Seat Post||Bontrager alloy, 31.6mm, 12mm offset, 400mm length|
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