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Powerfly+ 4 is an adventure-ready electric mountain bike built for rugged commutes and light singletrack with a powerful Bosch motor and 800Wh battery.
Powerfly+ 4 is an adventure-ready electric mountain bike built for rugged commutes and light singletrack with a powerful Bosch motor and 800Wh battery.
Trek

Trek Powerfly+ 4 800Wh Gen 5 eMountain Bike in Radioactive Red/Black

£2,950.00
Pre-Order

With Pre-Order, you can purchase the latest items added to our store in advance of them arriving with us.

Your Pre-Order is prioritised (at no additional charge); meaning that as soon as the product arrives with us, we can wrap it straight back up; ready for collection via Click & Collect or despatch to you — it often never even hits the stock room shelves!

Pre-Launch

With Pre-Launch, the date when we expect to receive the product ourselves is still a little too hazy to be confident in accepting Pre-Orders.

So, instead, you can submit your email address against the item you are interested in and we will email you as soon as stock arrives on the system.

Estimated Delivery & Collection Dates

Estimated Delivery & Collection Dates are given on Pre-Order and Pre-Launch products. They are for indication purposes only and can change at any time without notice.

The dates we provide are based on indications given by our suppliers. Whenever we get updated information from our suppliers we will endeavour to update the Estimated Delivery & Collection Dates provided on product pages.

We estimate this will be ready for despatch to you or collection via Click & Collect on Undetermined

Hassle free returns

RETURNS POLICY

If you'd like to exchange or return your order please include your name and order number with the return, our returns address is:

Returns
Activ Cycles
Unit 1&2 Kingfisher Business Park
Henwood
Ashford
TN24 8DG

Subject to the terms set out below we are happy to offer a refund or exchange on all goods except goods which are special orders or nutrition products, or where we have expressly advised you that there is no right to return the goods ordered (save in the event the goods are faulty) provided the goods are returned to us within 14 days of delivery to you.

If you return goods to us and request a different size or alternative product we will send it out free of charge (subject to stock availability). If you require a refund (or the replacement item is not in stock) we aim to process refunds within 2 working days of receipt of the goods. It is your responsibility to ensure that the item is returned to us safely and securely and in saleable condition.

Refunds will be processed using the same method of payment used for the original purchase. Due to the high incidence of fraud, we regret that we are unable to offer any refund without a valid receipt/delivery note.

If the product is faulty or wrong due to a mistake on our part then we will send out replacements free of charge and supply you with a prepaid returns label. For all goods returned please include a letter giving details along with a copy of the original receipt. Returned goods must be unused and with all appropriate packaging and labelling intact.

Your rights to return goods are protected under the Consumer Protection (Distance Selling) Regulations 2000 which can be found at theConsumer Protection (Distance Selling) Regulations 2000 (legislation.gov.uk).

Trek Powerfly+ 4 800Wh Gen 5 eMountain Bike in Radioactive Red/Black

Season:2027

Brand:Trek

Code:79355RED

Powerfly+ 4 is an adventure-ready electric mountain bike that does not break the bank.

It is built to explore anywhere from rugged commutes to light singletrack with a durable aluminium frame, bump-smoothing SR Suntour suspension fork, and smooth-shifting 10-speed Shimano CUES drivetrain. A powerful Bosch motor and long-range 800Wh battery give you the support and confidence to go farther.

The RIB 2.0 removable integrated battery makes it easy to remove the battery for more convenient charging or travelling, and you do not have to worry about dropping it thanks to a secondary safety catch. You can also pair a 250Wh PowerMore range extender with your bike to chase your most epic adventures.

Bosch's Performance Line CX motor has 85Nm of torque out of the box but can be tuned up to 100Nm or 120Nm and 750W of power using the Bosch eBike Flow app. The all-new Bosch CX motor is lighter, quieter and more powerful than ever without wavering on natural-feeling support. The 800Wh battery provides enormous range, or you can swap to a 600Wh option for a lighter-weight ride with more nimble handling. Customise your ride with mudguards and a rack designed specifically for Powerfly, so you can customise your setup for everyday needs or epic exploration.

Features:

  • Durable aluminium frame
  • SR Suntour suspension fork
  • 10-speed Shimano CUES drivetrain
  • Bosch Performance Line CX motor
  • 800Wh removable integrated battery (RIB 2.0)
  • Compatible with 250Wh PowerMore range extender
Technical Information
  • 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
  • Fork
    SR Suntour XCM 34, air spring, lockout, rebound adjuster, tapered steerer, Boost110, 15mm thru axle, 120mm travel
  • Hub front
    Shimano TC500 alloy, CentreLock, 110x15 mm thru axle
  • Hub rear
    Shimano TC500 alloy, CentreLock, 148x12 mm thru axle
  • Skewer rear
    Bontrager Switch thru axle, removable lever
  • Rim
    Bontrager Connection, double-wall, 32-hole, 20 mm width, Presta valve
  • Spokes
    14 g stainless steel, black
  • Tyre
    Bontrager Montrose Comp, wire bead, 30 tpi, 27.5x2.40" (Size S), 29x2.40" (Size M, L, XL)
  • Battery
    Bosch PowerTube 800 Wh, smart system
  • Charger
    Bosch standard 2A, 230V, smart system
  • E-bike classification
    Class 1
  • Shifter
    Shimano U6000, 10-speed
  • Rear derailleur
    Shimano CUES U6000 GS
  • Crank
    FSA Bosch CK-220, 36T ring, 165 mm length
  • Chainring
    FSA, 36T, steel
  • Cassette
    Shimano CUES LG300, LINKGLIDE, 11-48, 10-speed
  • Chain
    Shimano LG500, 9/10/11-speed
  • Pedal
    VP-536 nylon platform
  • Max. chainring size
    1x: 42T
  • Saddle
    Bontrager Commuter Comp
  • Seatpost
    Bontrager alloy, 31.6 mm, 12 mm offset, 330 mm (S), 360 mm (M), 400 mm (L, XL)
  • Handlebar
    Bontrager Comp, alloy, 31.8 mm, 40mm rise, 780 mm width
  • Grips
    Bontrager XR Endurance Comp, lock-on
  • Stem
    Bontrager Comp, 31.8 mm, Blendr compatible, 7-degree, 50 mm length
  • Head set
    FSA IS-2, 1-1/8" top, 1.5" bottom
  • Brake rotor
    Tektro, CentreLock, 203 mm
  • Max brake rotor size
    Frame: 203mm
  • Weight
    24.90 kg (Size M)
  • Weight limit
    136 kg (combined weight of bicycle, rider and cargo)
Sizing Information
Professional Opinion
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