Sorry! Trek 2022 Trek Powerfly Sport 4 EQ Electric Hardtail Mountain Bike in Lithium Grey and Trek Black is no longer available.

2022 Trek Powerfly Sport 4 EQ Electric Hardtail Mountain Bike in Lithium Grey and Trek Black




S - 27.5 WHEEL

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The 2022 Trek Powerfly Sport 4 EQ Electric Hardtail Mountain Bike in Lithium Grey/Trek Black takes Trek's most affordable electric mountain bike and equips it with everything you need for rugged daily commutes and trail adventures. It's built with sturdy parts, like a 10-speed Shimano drive train and a 80mm or 120 mm SR Suntour fork. You also get commute-ready accessories like mudguards, a rear rack and lights that are powered by the e-MTB system.

The Powerfly 4 EQ is built around a durable Alpha Platinum Aluminium frame that fully encases a long-range 500 Wh battery which is new, better-than-ever Bosch motor is smaller, lighter and more efficient. It feels more natural while you're pedalling, and has less drag when you're not. Trek's Removable Integrated Battery (RIB) system which securely holds the battery on the bike but also makes it easy to remove the battery for charging and transport. The Bosch Performance CX (250 W, 75 Nm) motor that assists up to 25 km/h is used on lots of mountain bikes and has plenty of torque for tackling obstacles and getting up climbs. The handlebar-mounted ergonomic Bosch Purion controller makes it easy to switch modes as you ride,

The rest of the equipment on the Powerfly 4 EQ is what you would expect on a good value trail mountain bike. It includes a Shimano drive train, a 120 mm SR Suntour XCM fork with lockout and hydraulic disc brakes. over the bike easier. Plus, Smart Wheel Sizing means you'll get the fastest wheel that fits – 29? wheels on larger frames, 27.5? wheels on smaller frames.

Riders who want an bike that can do double duty as a rugged commuter and a trail-worthy hardtail mountain bike. You want a lot of capability, quality and user-friendly features for an affordable price and you can't wait to go on bigger and better bike-fuelled adventures.


  • 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
  • It comes equipped with lights, mudguards and a rear rack so you're ready to ride right from the start

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

Fork SR Suntour XCM 34, coil spring, preload, lockout, tapered steerer, 44 mm offset, Boost110, 15 mm thru-axle,

Size XS 80 mm travel

Size S , M , L , XL: 120 mm travel

Fender/rack mountsTrek Powerfly custom integrated rack

Front hub Formula DC-511, 6-bolt, Boost110, 15 mm thru-axle

Rear hub Bontrager alloy, sealed bearing, alloy axle, 6-bolt, Shimano 8/9/10 freehub, Boost148, 12 mm thru-axle

Rims Bontrager Connection, double-wall, 32-hole, 20 mm width, Presta valve

Tyre Bontrager LT4 Expert, reflective strip, wire bead, 60 tpi,

Size: XS , S: 27.5x2.40"

Size: M , L , XL: 29x2.40"

Shifter Shimano Deore M4100, 10 speed

Rear derailleur Shimano Deore M5120, long cage

Crank FSA Bosch CK-220, 36T ring, 165 mm length

Cassette Shimano Deore M4100, 11-46, 10-speed

ChainKMC X10, 10-speed

Pedals VP-536 nylon platform

Saddle Bontrager Commuter Comp

Seatpost Bontrager alloy, 31.6 mm, 12 mm offset

Size XS, S: 330 mm length

Size M: 360 mm length

Size L, XL: 400 mm length

Handlebar Bontrager alloy, 31.8 mm, 15 mm rise, 720 mm width

Grips Bontrager XR Endurance Comp

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

Size XS: 50 mm length

Size S, M: 60 mm length

Size L: 70 mm length

Size XL: 80 mm length

Head set FSA IS-2, 1-1/8" top, 1.5" bottom

Brake set Tektro HD-M275 hydraulic disc

Brake rotor Tektro, 180 mm, 6-bolt & Tektro, 203 mm, 6-bolt

Battery Bosch PowerTube, vertical, 500 wh

Charger Bosch compact 2A (100-240 V) charger

Controller Bosch Purion

Light AXA Blueline taillight

Kickstand Pletscher Comp Flex 18

Cargo rack MIK Compatible alloy rear rack

Weight M - 25.59 kg / 56.42 lbs (with tubes)

Brand Trek
Model Year 2022
Barcodes 601842393291, 601842393307, 601842393314, 601842393321, 601842393338
SKUs / Part Numbers 1042426, 1042427, 1042428, 1042429, 1042430

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

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