To improve your shopping experience today and in the future, this site uses cookies.
I Accept Cookies
Powerfly+ FS 5 is a full-suspension electric mountain bike with a rugged Alpha Platinum Aluminium frame, 130mm/120mm suspension, and powerful brakes.
Powerfly+ FS 5 is a full-suspension electric mountain bike with a rugged Alpha Platinum Aluminium frame, 130mm/120mm suspension, and powerful brakes.
Trek

Trek Powerfly+ FS 5 Gen 4 eMountain Bike in Fury Red

£4,000.00
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+ FS 5 Gen 4 eMountain Bike in Fury Red

Season:2027

Brand:Trek

Code:79851RED

Powerfly+ FS 5 is a full-suspension electric mountain bike built for riders who want more out of every off-road adventure.

It pairs a rugged Alpha Platinum Aluminium frame with 130mm front and 120mm rear RockShox suspension to smooth out rough trails, while powerful Shimano MT620 4-piston brakes give you confident control on descents. It is a step up in performance with trail-ready parts that let you explore deeper and ride harder.

The new RIB 2.0 removable integrated battery makes it easy to remove the battery for more convenient charging or travelling, and there is no need to worry about dropping it thanks to a secondary safety catch. You can pair a 250Wh PowerMore range extender with the 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 120Nm and 750W of power using the Bosch eBike Flow app. The new 800Wh battery gives you enormous range for chasing down your greatest adventures, or you can swap to a 600Wh option for a lighter-weight ride with more nimble handling. You can also get more utility and sleek integration with mudguards and a rack designed specifically for Powerfly.

Features:

  • Rugged Alpha Platinum Aluminium frame
  • 130mm front and 120mm rear RockShox suspension
  • Shimano MT620 4-piston brakes
  • RIB 2.0 removable integrated battery
  • Bosch Performance Line CX motor (up to 120Nm and 750W)
  • 800Wh battery (compatible with 600Wh option)
  • Compatible with PowerMore range extender
Technical Information
  • Frame
    Alpha Platinum Aluminium, Removable Integrated Battery (RIB 2.0), tapered headtube, guided internal routing, Motor Armor, Mino Link adjustable geometry, adjustable leverage rate, 34.9 mm seat tube, ABP, UDH, rack and mudguard mounts, Boost 148, 120 mm travel
  • Fork
    RockShox Psylo Silver RC, Motion Control, Solo Air, tapered steerer, 44 mm offset, Boost110, 15 mm Maxle Stealth, 130 mm travel
  • Shock
    RockShox Deluxe Select, 210x50 mm
  • 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 Kovee, double-wall, Tubeless-Ready, 28-hole (S) / 32-hole (M, L, XL), 23 mm width, Presta valve
  • Spokes
    14 g stainless steel
  • Tyre
    Bontrager Gunnison Pro XR, Tubeless-Ready, 60 tpi, 27.5x2.40" (S) / 29x2.40" (M, L, XL)
  • Tyre sealant
    Bontrager TLR, 180 ml
  • Rim strip
    Bontrager TLR
  • Max tyre size
    Frame: 29x2.50" (S: 27.5x2.50")
  • Battery
    Bosch PowerTube 800 Wh, smart system
  • Charger
    Bosch standard 2A, 230V, smart system
  • Computer
    Bosch Purion 200
  • Motor
    Bosch Performance Line CX
  • E-bike classification
    Class 1
  • Shifter
    Shimano SLX M7100, 12-speed
  • Rear derailleur
    Shimano Deore M8200, long cage
  • Crank
    FSA alloy, 160 mm length
  • Cassette
    Shimano XT M8100, 10-51, 12-speed
  • Chain
    Shimano Deore M6100, 12-speed
  • Pedal
    VP-536 nylon platform
  • Max chainring size
    1x: 38T
  • Saddle
    Bontrager Verse P3, steel rails
  • Seatpost
    TranzX JD-YSI34, internal routing, 31.6 mm (100 mm travel (S), 150 mm travel (M), 170 mm travel (L, XL))
  • Handlebar
    Bontrager Comp, alloy, 31.8 mm, 40 mm rise, 780 mm width
  • Grips
    Trek Line Comp, nylon lock-on
  • Stem
    Bontrager Comp, 31.8 mm, Blendr compatible, 7-degree, 50 mm length
  • Headset
    FSA IS-2, 1-1/8" top, 1.5" bottom
  • Brake
    Shimano BR-MT620 hydraulic disc
  • Brake rotor
    Shimano RT64, CentreLock, 203 mm
  • Max brake rotor size
    Frame: 220 mm, min 180 mm
  • Mudguard
    Trek custom mudguard
  • Weight
    24.58 kg (M)
  • Weight limit
    136 kg
Sizing Information
Professional Opinion
Home Mountain Biking Bikes Trek Electric Bikes