2024 Powerfly 5 Gen 4

£3,975.00

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The Powerfly 5 is a highly capable electric mountain bike that balances performance and price. It pairs a high-end Bosch e-MTB smart system drive unit with durable mountain bike components built to stand up to the trail. Plus, it features our user-friendly Removable Integrated Battery (RIB) system that fully encases the battery in the frame, yet doesn't require tools for removal. This bike is versatile, capable and ready for adventure.

You've seen the e-bike light and want to expand your boundaries. Like us, you believe that nothing should stand between you and your next great ride, including big climbs, headwinds and rugged trails that you wouldn't otherwise be able to explore.

A lightweight and durable aluminium frame that fully encases a 625 Wh battery for sleek looks and protection on the trail, a Bosch Performance CX motor that assists up to 20 mph (25 km/h in Europe) and an ergonomic Bosch smart system LED remote and wireless Intuvia display. A RockShox Recon Silver RL fork, Shimano XT 1x12 drivetrain and Bontrager Kovee 23 Tubeless-Ready wheels.

With Powerfly 5, you get parts upgrades that make a big difference riding off-road, like an air-spring fork that's smooth and adjustable for your own weight, plus more powerful 4-piston brakes and wheels that make it easy to ditch the tubes for better traction and flat protection.
- The Powerfly Gen 4 features Bosch's smart system with an LED remote that connects to the Bosch eBike Flow app for over-the-air system updates, customised motor tuning and more
- 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 to remove the battery without tools and lets you mount a water bottle cage
- It comes equipped with Walk Assist and an intelligent e-MTB mode that automatically delivers the right amount of power based on your terrain
- The Shimano 12-speed drivetrain gives you a lot of gears and a wider range, so you can always find the right cadence for getting the most out of the motor
- 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

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
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.

Bosch Performance Line CX motor
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.

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 Intuvia 100 display
The Bosch smart system Intuvia 100 display puts your ride data front and centre with a large-font high-contrast display that's easy to read in any weather. You get eBike Lock theft protection, and best of all, it's completely wireless and connects to the remote via Bluetooth.

Bosch eBike Flow app
The new eBike Flow app turns your ride into a personalised experience. Use it to customise your motor's assist behaviour, 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.

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 Size XS, UNI, Aluminium, Alpha Platinum Aluminium, curved top tube, Removable Integrated Battery (RIB), tapered head tube, Control Freak internal routing, Motor Armour, Boost148, 12 mm thru axle
Wheel Size Front 27.5
Wheel Size Rear 27.5
Fork RockShox Recon Silver RL, Solo Air, Motion Control damper, lockout, tapered steerer, 46 mm offset, Boost110, 15 mm Maxle Stealth, 80 mm travel
Fork Unknown
Gears DERAILLEUR, Shimano, 1 Gears
Tyres UNKNOWN,
Pedals UNBRANDED,
Wheels UNKNOWN, Bontrager Kovee, double-wall, Tubeless-Ready, 28-hole, 23 mm width, Presta valve Shimano TC500 alloy, CentreLock, 110x15 mm thru axle Shimano TC500 alloy, CentreLock, 148x12 mm thru axle
Shifters SHIMANO, Shimano Deore M6100, 12-speed,
Kickstand UNKNOWN, Unknown
Front Brake SH, Shimano 4-piston hydraulic disc, MT4100 lever, MT420 calliper // Shimano 4-piston hydraulic disc, MT4100 lever, MT420 calliper Max brake rotor size, Disc brake with hydraulic actuation
Rear Brake SH, Shimano 4-piston hydraulic disc, MT4100 lever, MT420 calliper // Shimano 4-piston hydraulic disc, MT4100 lever, MT420 calliper Max brake rotor size, Disc brake with hydraulic actuation
Rear Derailleur ,
Crankset E_THIRTEEN, E*thirteen E*spec Plus, 165 mm length
Chain SHIMANO, Shimano Deore M6100, 12-speed
Headset FSA, FSA IS-2, 1-1/8" top, 1.5" bottom
Handlebar BONTRAGER, Bontrager alloy, 31.8 mm, 15 mm rise, 720 mm width
Stem BONTRAGER, Bontrager Comp, 31.8 mm, Blendr compatible, 7-degree, 50 mm length
Bartape / Grips BONTRAGER
Seatpost BONTRAGER
Seatpost Clamp UNBRANDED
Saddle BONTRAGER, Bontrager Commuter Comp
Front Light UNKNOWN
Rear Light UNKNOWN
Battery Capacity 625
Battery Brand BOSCH
Battery Model BOSCH
Drivetrain Brand Bosch
Sensor Type PEDALFORCE
Colours POWER SURGE/MERCURY, WHITE PRISMATIC/PLASMA GREY PEARL
Sizes L, M, S, XL, XS
Brand Trek
Model Year 2024
Barcodes 768682717264, 768682717288, 768682717387, 768682717448, 768682717547, 768682717561, 768682717608, 768682717622, 768682717646, 768682717707
SKUs / Part Numbers 5303356, 5303357, 5303358, 5303359, 5303360, 5303361, 5303362, 5303363, 5303364, 5303365

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

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