Trek Powerfly 4 500wh Electric MTB
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Frequently Bought Together


A tough yet refined aluminum frame that fully encases a long-range 500Wh battery for sleek looks, a Bosch Performance CX (250W, 85Nm) motor that assists up to 20 mph or 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.
PRODUCT HIGHLIGHTS

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. Larger frames (M and up) have a straight top tube because taller riders with longer legs typically don’t have the same issues with standover height.

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.

The bike is internally wired to accept additional lights

This unique protection shield is lightweight yet robust and protects the motor from rocks, logs and other debris
Specifications :
Size XS-S Frame | Alpha Platinum Aluminum, curved top tube, Removable Integrated Battery (RIB), tapered head tube, Control Freak internal routing, Motor Armor, Boost148, 12mm thru axle | Size M-XL Frame | Alpha Platinum Aluminum, Removable Integrated Battery (RIB), tapered head tube, Control Freak internal routing, Motor Armor, Boost148, 12mm thru axle |
Frame Size XS Fork | SR Suntour XCM 34, coil spring, preload, lockout, tapered steerer, 44mm offset, Boost110, 15mm thru axle, 80mm travel | Frame Size S-XL Fork | SR Suntour XCM 34, coil spring, preload, lockout, tapered steerer, 44mm offset, Boost110, 15mm thru axle, 120mm travel |
Max Fork Travel |
120mm (XS & S: 100mm) |
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 |
Rear Skewer | Bontrager Switch thru axle, removable lever |
Rim |
Bontrager Connection, double-wall, 32-hole, 20mm width, presta valve |
Spokes |
14g stainless steel
|
Frame Size XS-S Tyre | Bontrager XR3 Comp, wire bead, 30tpi, 27.5x2.35'' | Frame Size M-XL Tyre |
Bontrager XR3 Comp, wire bead, 30tpi, 29x2.30'' |
Max Tyre Size |
Frame: 29x2.60" or 27.5x2.8" (XS & S: 27.5x2.60") Fork: See manufacturer |
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Shifter |
Shimano Deore M4100, 10 speed |
Rear Derailleur | Shimano Deore M5120, long cage |
Crank | FSA Bosch CK-220, 36T ring, 165mm length | Chain Ring | FSA, 36T, steel |
Cassette |
Shimano Deore M4100, 11-46, 10 speed |
Chain |
KMC X10, 10 speed |
Pedal | VP-536 nylon platform | Max Chain Ring Size | 38T |
Saddle | Bontrager Commuter Comp | Frame Size XS-S Seatpost | Bontrager alloy, 31.6mm, 12mm offset, 330mm length |
Frame Size M-XL Seatpost | Bontrager alloy, 31.6mm, 12mm offset, 360-400mm length | Frame Size XS-S Handlebar | Bontrager alloy, 31.8mm, 15mm rise, 720mm width |
Frame Size M-XL Handlebar | Bontrager alloy, 31.8mm, 15mm rise, 750mm width | Grips | Bontrager XR Endurance Comp, lock-on |
Frame Size XS Stem | Bontrager alloy, 31.8mm, Blendr compatible, 7 degree, 50mm length | Frame Size S-M Stem | Bontrager alloy, 31.8mm, Blendr compatible, 7 degree, 60mm length |
Frame Size L-XL Stem | Bontrager alloy, 31.8mm, Blendr compatible, 7 degree, 70mm length | Headset | FSA IS-2, 1-1/8'' top, 1.5'' bottom |
Brake Rotor | Tektro, 6-bolt, 203mm | Brake Set | Tektro HD-M275 hydraulic disc |
Weight | M - 23.37 kg / 51.53 lbs | Weight Limit | This bike has a maximum total weight limit (combined weight of bicycle, rider, and cargo) of 300 pounds (136 kg). |
Professionally assembled and ready to ride!
All bikes are assembled by our team of professional Cycle Souq technicians with quality checks at every stage to ensure the bike is delivered to you in perfect condition.
