Powerfly 4 | Trek Bikes (NZ)

Overview

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 500 Wh battery for sleek looks, a Bosch Performance CX (250 W, 75 Nm) motor that assists up to 32 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.

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.

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

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Features

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.

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

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.

Watch the video

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.

Calculate your range

This unique protection shield is lightweight yet robust, and protects the motor from rocks, logs and other trail debris.

Going for a long ride? Rack mounts make carrying accessories a breeze.

The bike is already internally wired to accept additional lights. Go to your dealer and simply have them attached to the bike and plug them in.

The right wheel size paired with your frame size gives you the perfect combination of responsiveness and control.

Our premium lightweight aluminium is continuously cold extruded and butted at multiple points, and hydroformed into sophisticated tube shapes for maximum strength and minimum weight.

Chainstay mounts make it easy to install a rear kickstand that stays out of your way and supports bikes of all sizes. No more laying or leaning.

Specs

*Frame	Size: S Alpha Platinum Aluminium, curved top tube, Removable Integrated Battery (RIB), tapered head tube, Control Freak internal routing, Motor Armour, Boost148, 12 mm thru axle
Size: M , L , XL Alpha Platinum Aluminium, Removable Integrated Battery (RIB), tapered head tube, Control Freak internal routing, Motor Armor, Boost148
Fork	SR Suntour XCM 34, coil spring, preload, lockout, tapered steerer, 44 mm offset, Boost110, 15 mm thru axle, 120 mm travel
Max compatible fork travel	120mm (XS & S: 100mm)

Hub front	Formula DC-511, 6-bolt, Boost110, 15 mm thru axle
Hub rear	Bontrager alloy, sealed bearing, alloy axle, 6-bolt, Shimano 8/9/10 freehub, Boost148, 12 mm thru axle
Skewer rear	Bontrager Switch thru-axle, removable lever
Rim	Bontrager Connection, double-wall, 32-hole, 20 mm width, Presta valve
*Tyre	Size: S Bontrager XR3 Comp, wire bead, 30 tpi, 27.5x2.35"
Size: M , L , XL Bontrager XR3 Comp, wire bead, 30 tpi, 29x2.30"
Max tyre size	Frame: 29x2.60" or 27.5x2.8" (XS & S: 27.5x2.60") Fork: See manufacturer

Shifter	Shimano Deore M4100, 10 speed
Rear derailleur	Shimano Deore M5120, long cage
Crank	FSA Bosch CK-220, 36T ring, 165 mm length
Chainring	FSA, 36T, steel
Cassette	Shimano Deore M4100, 11-46, 10-speed
Chain	KMC X10, 10-speed
Pedal	VP-536 nylon platform
Max. chainring size	38T

Saddle	Bontrager Commuter Comp
*Seatpost	Size: S Bontrager alloy, 31.6 mm, 12 mm offset, 330 mm length
Size: M Bontrager alloy, 31.6 mm, 12 mm offset, 360 mm length
Size: L , XL Bontrager alloy, 31.6 mm, 12 mm offset, 400 mm length
*Handlebar	Size: S Bontrager alloy, 31.8 mm, 15 mm rise, 720 mm width
Size: M , L , XL Bontrager alloy, 31.8 mm, 15 mm rise, 750 mm width
*Grips	Size: S , M , L , XL Bontrager XR Endurance Comp
Size: S , M , L , XL Bontrager XR Endurance Comp, lock-on
*Stem	Size: S , M Bontrager alloy, 31.8 mm, Blendr-compatible, 7-degree, 60 mm length
Size: L , XL Bontrager Comp, 31.8 mm, Blendr compatible, 7-degree, 70 mm length
Head set	FSA IS-2, 1-1/8" top, 1.5" bottom
Brake rotor	Tektro, 6-bolt, 203 mm
Brake Set	Tektro HD-M275 hydraulic disc

Battery	Bosch PowerTube, vertical, 500 wh
Charger	Bosch compact 2A, 100–240V, smart system
Motor	Bosch Performance Line CX, magnesium motor body, 85 Nm, 25 km/h (15.5 mph) max assist, 32 km/h for New Zealand
Computer	Bosch Purion

Weight	M - 23.37 kg/51.53 lb
Weight limit	This bike has a maximum total weight limit (combined weight of bicycle, rider and cargo) of 136 kg (300 lb).

Sizing

Geometry

Service

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Motor Armor

Rack mounts

Lighting ready

Smart Wheel Size

Alpha Platinum Aluminium

Rear kickstand mount