2023 Trek Powerfly 4 625w Gen 4 625Wh Hardtail Electric Mountain Bike

£3,145.00
Was £3,700.00

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The 2023 Trek 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.

A tough yet refined aluminium frame that fully encases a long-range 625 Wh battery for sleek looks, a Bosch Performance Line CX (250 W, 85 Nm) motor that assists up to 20 mph (25 km/h in Europe), a Bosch Intuvia smart system 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 Intuvia controller has 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 mudguards, plus built-in wiring lets you easily install lights powered by the motor

Electric Bike Updates and Diagnostics

As electric bikes have become more sophisticated it’s important to stay on top of updates. Just like your home computer or smart phone regular updates are now released for most electric bike systems. If you buy a bike from Cycles UK we will do electric bike updates and diagnostics you need free of charge.

Electric Bike Updates

Electric bike updates can help to improve battery life, tweak how the motor works and fix bugs and problems. Most systems will require you to plug your bike into some specialist software at an authorised dealer. At Cycles UK we are authorised dealers for top electric bike brands including Specialized, Trek, Orbea, Whyte, Cannondale and Raleigh. As a result our stores have the software and hardware to run updates on all the major electric bike systems including Bosch, Shimano and Ebikemotion.

Free Electric Bike Updates and Diagnostics

We now provide free updates and diagnostics for life on any electric bike purchased from Cycles UK.

Electric Bike Motors Explained

Electric bikes have really come into their own in the last couple of years. Thanks to advances in electric bike motors and batteries. A couple of bike manufacturers, most notably Specialized, are making their own electric bike motors. The vast majority of bike companies are using the same motors. So, you will find exactly the same electric motor being used on bikes from different brands and at different price points. In this guide, we’ll take you through the main types of electric bike motors. Look at the differences between the most commonly used brands.

Electric Bike Hub Motors vs Mid-Drive Motors

Electric bikes tend to either come with a hub motor or a mid-drive motor. Mid-drive motors sit where the cranks and bottom bracket are on a bike and drive the cranks and chain around. Hub drive motors sit in the middle of the wheel and drive the wheel directly. Hub drive electric bikes are cheaper but less efficient, and less smooth, to ride.


Read our guide to electric bike motors

Trek Electric Bike Range Guide

The Trek electric bike range has been pretty enormous at times. This has mainly been due to a single model of bike being available in multiple battery and colour variations so you quickly ended up with dozens of variants. Thankfully Trek have scaled this back a little recently, and their electric bike range is now easier to understand.

Until recently nearly all Trek electric bikes came with Bosch motors. For the 2023 season they are continuing with Bosch but also introducing motors from new brands like TQ and Hydrive on selected models.

Read our full Trek electric bike range guide

Price Match at Cycles uk

We understand that price is important, so we regularly price-check our competitors to make sure we have the best offers available. We recognise that we will not always be the cheapest, so if you see the same product cheaper from any of our competitors then please get in touch via the form below and we will do our best to match any reasonable advertised price.

Trek made their first bikes in 1976 in a barn in Wisconsin. Now they’re one of the biggest bike brands in the world. Trek bikes cover everything from professional-level road and mountain bike race bikes to commuters, hybrids and kids bikes. There is a strong heritage of racing at Trek and many Trek bikes have a strong race influence. They take a very scientific approach to researching bike and human performance and then make the fastest and most efficient bikes they can.

It doesn’t stop their attention and passion for cycling flows through everything they do. Since the 1990s, Trek has supported Places for Bikes. Places for Bikes is an advocacy organisation in the USA that gets more people on bikes more often! Places for Bikes ethos falls in line with the companies mission statement to:

Build only products we love. Provide incredible hospitality to our customers, and change the world by getting more people on bikes.

Frame - Alpha Platinum Aluminium, Removable Integrated Battery (RIB), tapered head tube, Control Freak internal routing, Motor Armour, Boost148, 12 mm thru axle

Fork - Size: XS - SR Suntour XCM 34, coil spring, preload, lockout, tapered steerer, 44 mm offset, Boost110, 15 mm thru axle, 80 mm travel. Size: S , M , L , XL - SR Suntour XCM 34, coil spring, preload, lockout, tapered steerer, 44 mm offset, Boost110, 15 mm thru axle, 120 mm travel

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 - Bontrager XR3 Comp, wire bead, 30 tpi

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 - Wellgo VPE-536

Saddle - Bontrager Commuter Comp

Seatpost - Bontrager alloy, 31.6 mm, 12 mm offset

Handlebar - Bontrager alloy, 31.8 mm, 15 mm rise

Grips - Bontrager XR Endurance Comp, lock-on

Stem - Bontrager alloy, 31.8 mm, Blendr-compatible, 7-degree

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 625Wh, smart system

Charger - Bosch standard 2A, 230V, smart system

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

Colours GLOSS ALPINE/GLOSS LITHIUM, LIVING CORAL /SOLID CHARCOAL, MATTE BLACK/GLOSS RED
Sizes L - 29 WHEEL, M - 29 WHEEL, S - 27.5 WHEEL, XL - 29 WHEEL, XS - 27.5 WHEEL
Brand Trek
Model Year 2023
Barcodes 601842782101, 601842782118, 601842782125, 601842782132, 601842782149, 601842782156, 601842782163, 601842782170, 601842782187, 601842782194, 601842782200, 601842782217, 601842782224, 601842782231, 601842782248
SKUs / Part Numbers 5278912, 5278913, 5278914, 5278915, 5278916, 5278917, 5278918, 5278919, 5278920, 5278921, 5278922, 5278923, 5278924, 5278925, 5278926

Please note: Manufacturers can sometimes change the specification of the products from time to time.

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