0
Your Profile
Your Basket 0
Your Offers 0
Continue Shopping
Checkout
To improve your shopping experience today and in the future, this site uses cookies.
Read our full Privacy Policy & Cookie information here
I Accept Cookies
Powerfly+ 4 800EU XL 29 Gloss Dark Star/Matte Dark
Powerfly+ 4 800EU XL 29 Gloss Dark Star/Matte Dark
Trek

2026 Trek Powerfly+ 4 800Wh E Mountain Bike in Gloss Dark Star/Matte Dark

£3,150.00
Size Guide
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).

2026 Trek Powerfly+ 4 800Wh E Mountain Bike in Gloss Dark Star/Matte Dark

Season:2026

Brand:Trek

Code:61707BLK

Powerfly+ 4 800 wh is an adventure-ready electric mountain bike that doesnt break the bank. Its rugged aluminium frame gives you a powerful boost thanks to a Bosch performance line cx motor with a massive 800 wh battery. A bump-smoothing SR Suntour suspension fork boosts confidence on any trail while 10-speed Shimano cues gives you clean shifting.

  • The powerfly+ delivers a full-assist ride thats as versatile as it is powerful
  • 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
  • Its RIB 2.0 removable integrated battery is easy to remove for travel and storage, and its virtually rattle-free while you ride
  • Want even more boost? With the Bosch e-bike flow app, you can increase torque to 100 nm and peak power up to 750 w.
  • Compatible with bosch powermore booster batteries for taking your ride way, way, way out there

new RIB 2.0 - Removable integrated battery (rib 2.0) makes it easy to remove your battery for more convenient charging or travelling, and you dont have to worry about dropping it thanks to a secondary safety catch.

Extend your ride - wanna take your ride even further? Pair a 250wh powermore range extender with your bike to chase your most epic adventures.

Light, quiet, powerful: 100nm upgrade ready - Bosch's performance line cx motor has 85nm of torque out of the box but can be tuned all the way up to 100nm and 750w of power using the bosch ebike flow app, the all-new bosch cx motor is lighter, quieter and now more powerful than ever without wavering on natural-feeling support for crushing epic rides.

Massive range for epic rides - bosch's 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.

Customise your ride - get more utility and sleek integration with mudguards and a rack designed specifically for powerfly, so you can customise your setup for everyday needs or epic exploration.

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
Sizing Information
Professional Opinion
Home Mountain Biking Bikes Trek Electric Bikes