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Trek Powerfly+ 4 Gen 5 2025 - Mercury/Power Surge

Trek Bikes

£3,050.00
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Powerfly+ 4 Gen 5 - Conquer Every Adventure

The Trek Powerfly+ 4 Gen 5 2025 is a high-performance hardtail e-MTB designed for riders who crave efficiency and agility on the trail. Its sleek design combined with a responsive hardtail frame and a powerful electric motor make it ideal for riders seeking an agile and versatile trail companion. Whether you're exploring new trails or running powerlaps around your local bridleways this EMTB is the perfect choice.

Trek Powerfly+ 4 Gen 5 2025 - Mercury/Power Surge

The Powerfly+ 4 features a durable aluminum frame and is powered by the latest Bosch Performance Line CX Gen 5 drive unit and Bosch PowerTube 600 Wh battery. This combination provides ample power and range for extended rides while maintaining the efficiency of a hardtail frame. This electric hardtail mountain bike also comes equipped with air suspension, ensuring a smooth and comfortable ride on any trail.

 

Trek Powerfly+ 4 Gen 5 2025 - Mercury/Power Surge

Capable And Versatile

 

The Powerfly+ delivers a powerful, full-assist ride that's as exhilarating as it is versatile. With its intuitive controls and powerful motor, you'll conquer any terrain with ease.

Bosch Performance Line CX Gen 5 Motor

 

Bosch's Performance Line CX motor delivers plenty of torque for steep, punchy climbs and is easy to control with the Purion 200 remote – plus you can customise it in the eBike Flow app.

Trek Powerfly+ 4 Gen 5 2025 - Mercury/Power Surge

600Wh Bosch PowerTube RIB 2.0 Battery

 

RIB 2.0 removable integrated battery not only provides convenience for travel and storage but also ensures a smooth and quiet ride, free from any distracting rattles.

Trek Powerfly+ 4 Gen 5 2025 - Mercury/Power Surge

Carry Your Equipment With Ease

 

Fully equipped for any adventure, this mountain bike features mounts for lights, mudguards, a rear rack, and a kickstand, making it easy to customize for your specific needs.

Trek Powerfly+ 4 Gen 5 2025 - Mercury/Power Surge

Bosch PowerMore Compatibility

 

Want to ride even further? The Powerfly+ is compatible with Bosch PowerMore booster batteries, and you can even upgrade the 600 Wh battery for a bigger 800 Wh option so you can explore from dawn to dusk.

Trek Powerfly+ 4 Gen 5 2025 - Mercury/Power Surge

Geometry 

Trek Powerfly+ 4 Gen 5 2025 - Mercury/Power Surge
Frame size letter S M L XL
Wheel size 27.5" 29" 29" 29"
A - Seat tube 37.0 40.0 42.0 45.0
B - Seat tube angle 73.0° 73.3° 73.4° 74.6°
Effective seat tube angle 75.0° 75.0° 75.0° 76.0°
C - Head tube length 13.3 10.8 12.3 14.3
D - Head angle 65.5° 66.5° 66.5° 66.5°
E - Effective top tube 57.1 61.2 64.0 65.8
F - Bottom bracket height 31.5 31.5 31.5 31.5
G - Bottom bracket drop 4.5 6.5 6.5 6.5
H - Chainstay length 44.2 46.1 46.1 46.1
I - Offset 4.4 4.4 4.4 4.4
J - Trail 11.6 11.7 11.7 11.7
K - Wheelbase 115.1 119.5 122.6 125.9
L - Standover 69.7 74.7 74.6 74.6
M - Frame reach 41.0 44.0 46.5 49.0
N - Frame stack 59.9 64.1 65.5 67.3
FRAME:
Alpha Platinum Aluminium, Removable Integrated Battery (RIB 2.0), tapered head tube, guided internal routing, Control Freak internal routing, Motor Armour, Boost148, 12 mm thru axle
FRAME MATERIAL:
Aluminium
FORK BRAND:
SR Suntour
FORK:
SR Suntour XCR 34, air spring, 2CR damper, hydraulic lockout, tapered steerer, 44 mm offset, Boost 110, 15 mm bolt-on thru axle / Size: M/ L /XL: 120 mm (29) Size S: 100 mm (27.5)
FORK TRAVEL:
120 mm
MOTOR:
Bosch
MOTOR CONTROLLER:
Bosch Smart System Purion 200
DISPLAY:
Not Included
DRIVE UNIT:
Bosch Performance Line CX Gen 5 (85 Nm ) Smart System
BATTERY:
Bosch PowerTube 600 Wh Battery
RANGE EXTENDER:
Bosch PowerMore 250Wh Available for Purchase
CHARGER:
Bosch standard 2A, 230V, smart system
WHEEL SIZE:
29
WHEELS:
Rim: Bontrager Connection, double-wall, 32-hole, 20 mm width, Presta valve / Hub Front: Shimano TC500 alloy, CentreLock, 110x15 mm thru axle Hub Rear: Shimano TC500 alloy, CentreLock, 148x12 mm thru axle
TYRES:
Size: S Bontrager XT3 Comp, wire bead, 30 tpi, 27.5x2.40" / Size: M , L , XL Bontrager XT3 Comp, wire bead, 30 tpi, 29x2.40"
DROPPER SEATPOST:
Yes
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
SADDLE:
Bontrager Commuter Comp
CRANKSET:
FSA Bosch CK-220, 36T ring, 165 mm length
HANDLEBAR:
Bontrager Comp, alloy, 31.8 mm, 40mm rise, 780 mm width
STEM:
Bontrager Comp, 31.8 mm, Blendr compatible, 7-degree, 50 mm length
GRIPS:
Bontrager XR Endurance Comp, lock-on
SHIFTERS:
Shimano U6000, 10-speed
BRAKE BRAND:
Tektro
HYDRAULIC BRAKES:
Yes
BRAKES:
Tektro HD-M275 hydraulic disc
REAR DERAILLEUR:
Shimano CUES U6000 GS
CHAIN:
Shimano LG500, 9/10/11-speed
NUMBER OF GEARS:
10 Speed
PEDALS:
VP-536 nylon platform
FRONT MUDGUARD:
MTB Monster Mudguard
EXTRAS:
Bontrager Switch Lever, w/tool
TYPE OF BIKE:
Cross Country
DESIGNED FOR:
Speed and efficiency on the climbs, perfect for covering longer distances quickly due to a lightweight frame.
IDEAL TERRAIN:
Smoother, single-track off-road trails with minimal technical features. Can be used for both road and off-road riding.
PLEASE NOTE:
Trek reserve the right to make changes to the product information contained on this site at any time without notice, including with respect to equipment, specifications, models, colours, materials and pricing. Due to supply chain issues, compatible p
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FAQs: Trek Powerfly+ 4 Gen 5 2025

Basics

What size bike do I need?
 

What is Invisiframe and is it worth fitting it to the Powerfly+?
 

What is tubeless setup and can the Powerfly+ be set up tubeless?
 

What equipment & info will the bike arrive with?
 

Is it possible to see the Powerfly+ in your showroom & is it possible to have a test ride or demo it?
 

What type of bike is the Powerfly+ and what is it designed for?
 

What type of terrain is the Powerfly+ ideally suited towards?
 

Can the Powerfly+ 4 Gen 5 get wet and muddy?
 

How should you clean & maintain the Powerfly+ 4 Gen 5?
 

Can you tell me about the Trek brand?
 

I'm new to riding, what essential bits of kit do I need to get going?
 

Where can I ride the Powerfly+ 4 Gen 5?
 

Technical

Where can I find all of the major components that come on the bike?
 

Can you fit a water bottle on the Powerfly+ 4 Gen 5?
 

What warranty comes on the Powerfly+ 4 Gen 5?
 

Does the Powerfly+ 4 Gen 5 come with pedals?
 

Can I get hold of spare / replacement parts easily for the Powerfly+ 4 Gen 5?
 

Are electric bikes legal? How fast can the Powerfly+ 4 Gen 5 go?
 

Do I need a license to ride the Powerfly+ 4 Gen 5 in the UK?
 

Can I add upgrades to the bike?
 

Electric / Battery

How should I store the bike?
 

What is the battery lifespan on a Powerfly+ 4 Gen 5?
 

Are Lithium-Ion batteries safe?
 

Is the internal battery removable on the Powerfly+ 4 Gen 5?
 

What is the expected range of the battery on the Powerfly+ 4 Gen 5?
 

What is a range extender and can you add one to the Powerfly+ 4 Gen 5?
 

Does the bike arrive fully charged and ready to go?
 

How to charge the battery on the Powerfly+ 4 Gen 5?
 

How long does it take to charge the battery?
 

How is the motor protected ?
 

Purchasing

Why choose MTB Monster?
 

Do you offer 0% finance for the Powerfly+ 4 Gen 5?
 

Do you accept Cycle To Work vouchers? How does it work?
 

I'm still sorting my payment method, can I reserve a bike?
 

The bike is not yet in stock, can I pre-order one?
 

How will the bike be delivered & what are the setup requirements?
 

What are the delivery options?
 

Can I collect the bike in the store?
 

I still have more questions, can I speak to someone?
 

Ask a Question