Trek Powerfly 4 Gen 4 500Wh 27.5˝ wheels City Ebike

$3,649.99

Trek Powerfly 4 Gen 4 500Wh 27.5˝ wheels City Ebike

$3,649.99

Powerfly 4 is our most affordable electric mountain bike. It’s built with parts that hold up, like a smooth-shifting Shimano drivetrain, and a powerful Bosch motor. Plus, it features our user-friendly Removable Integrated Battery (RIB) system that’s fully encased in the frame yet doesn’t require tools for removal. This bike expands your boundaries and lets you travel to destinations you never thought you’d reach on a mountain bike.

Powerfly 4 is our most affordable electric mountain bike. It’s built with parts that hold up, like a smooth-shifting Shimano drivetrain, and a powerful Bosch motor. Plus, it features our user-friendly Removable Integrated Battery (RIB) system that’s fully encased in the frame yet doesn’t require tools for removal. This bike expands your boundaries and lets you travel to destinations you never thought you’d reach on a mountain bike.

Description

It’s right for you if…
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 an e-MTB with the latest user-friendly tech is the best way to get them.

The tech you get

A tough yet refined aluminum frame that fully encases a 500Wh battery for sleek looks. The latest from Bosch with smart system Performance Line CX motor, capable of speeds up to 20MPH, including the new Bluetooth® LED remote for easy connectivity and all-in-one navigation and activity tracking through the eBike Flow app. A 1×10 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.

The final word

Our most affordable electric mountain bike comes with the same powerful Bosch motor and intuitive controller as our most expensive e-bikes, with a smaller battery and parts chosen to give you great value.

Why you’ll love it

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

The top-notch new Bosch smart system gives you more control over your ride with navigation and activity tracking through the eBike Flow app

It comes equipped with Walk Assist and an intelligent e-MTB 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 fenders, plus built-in wiring lets you easily install lights powered by the motor

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.

Bosch Performance Line CX motor
Bosch Performance Line CX sets the standard for eMTB performance with up to 85Nm of torque and an intelligent eMTB mode with Extended Boost that automatically adjusts the amount of assist based on the terrain.

Bosch LED Remote
The Bosch smart system LED remote lets you easily change assist modes, activate walk mode, or turn on optional lights. The bright LEDs are easy to see in any light, and show you your battery level and assist mode at a glance.

Bosch eBike Flow app
The new eBike Flow app turns your ride into a personalized experience. Use it to customize your motor’s assist behavior, track your ride stats, and integrate your data with apps like Strava and Apple Health. There’s even handy features like navigation and service reminders.

Will my bike have a curved top tube?
Smaller frames (XS, S and M) 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 frame (L) has a straight top tube because taller riders with longer legs typically don’t have the same issues with standover height.

Super speedy assist
Accelerate up to 28mph with the new Bosch Performance Sport drive unit that makes cruising through errands, commutes, and joyrides a breeze.

Super speedy assist
Accelerate up to 28mph with the new Bosch Performance Sport drive unit that makes cruising through errands, commutes, and joyrides a breeze.

Frameset
Frame Alpha Platinum Aluminum
Fork SR Suntour XCM 34, coil spring
Wheels
Front hub Formula DC-511, 6-bolt, Boost110, 15mm thru axle
Rear hub Bontrager Approved DC-3248, sealed bearing, alloy axle, 6-bolt, Shimano 8/9/10 freehub, Boost148, 12mm thru axle
Rim Bontrager Connection, double-wall, 32-hole, 20mm width, Presta valve
Tire Bontrager XR3 Comp
Drivetrain
Shifter Shimano Deore M4100, 10 speed
Rear derailleur Shimano Deore M5120, long cage
Crank FSA Bosch CK-220, 36T ring, 165mm length
Chainring FSA, 36T, steel
Cassette Shimano Deore M4100, 11-46, 10 speed
Chain KMC X10, 10 speed
Pedal VP-536 nylon platform
Components
Saddle Bontrager Commuter Comp
Seatpost Bontrager alloy
Handlebar Bontrager alloy
Grips Bontrager XR Endurance Comp, lock-on
Stem Bontrager alloy
Headset FSA IS-2, 1-1/8” top, 1.5” bottom
Brake rotor Tektro, 6-bolt, 203mm
Brake Set Tektro HD-M275 hydraulic disc
Accessories
Battery Bosch PowerTube 500Wh, smart system
Charger Bosch standard 4A, 110V, smart system
Controller Bosch Intuvia 100, smart system
Motor Bosch Performance Line CX, smart system
Computer Bosch LED remote, smart system
Weight
Weight M – 23.94 kg / 52.78 lbs
Weight limit This bike has a maximum total weight limit
(combined weight of bicycle, rider, and cargo)
of 300 pounds (136 kg).

Additional information

Brands

Trek

Frame type

Step-over

Height range

Tiny riders and kids – Under 5'4", Average height riders – 5'5" to 6'1", Tall riders – Above 6'1"

Style

Mountain eBike

Rider size

Average size rider – Under 300lbs

Color

Gloss Alpine/Gloss Lithium, Living Coral /Solid Charcoal, Matte Black/Gloss Red

Trek Powerfly 4 Gen 4 500Wh 27.5˝ wheels City Ebike
$3,649.99