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Trek

Trek Powerfly FS+ 4 800Wh Gen 4 Electric Mountain Bike - Mercury

£4,150.00
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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
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Hassle free returns

Warranty

Cycle Solutions offer a full 18-month warranty on bikes purchased through our online shop, in line with the guidance set out in the Consumer Rights Acts 2015.

In the unfortunate event of your purchase being affected by a warranty-covered fault, please inform us by email ([email protected]). Please note that our Aftersales Department's operating hours are 09:00AM to 17:30PM Monday to Friday.

Once a warranty claim has been placed we will review the claim and advise on an appropriate course of action, please do not return your item until you have spoken to an advisor.

Please allow a minimum of 15 working days from receipt of returned item(s) for repair/replacement under warranty. We expect to be able to return the items within a maximum 30 working days, however, specific timescales can change based on the requirements of the individual case.

Most bikes and accessories are covered by a standard manufacturer's warranty but please be aware that there are faults/issues that are NOT covered by your warranty. This includes;

  • Any normal wear and tear from using the product
  • Improperly installed or repaired products (always follow the instruction guides for any product set-up or installation)
  • Modifications to products
  • Stripped pedal threads - a comprehensive guide on the correct installation of pedals is sent out with every bike
  • E-bike batteries and associated componentry

Returns

We operate a 365-day return policy so that if you change your mind, the unused items can be returned to us so that you can purchase with complete peace of mind.

Once you have spoken to our aftersales department, you may need to return the item, you can arrange this via any courier/delivery service that you choose.

Please contact us in advance if you wish to return a bike

If a bike needs to be returned due to an incorrect size being ordered, or the item is no longer wanted or ordered in error, then collection can be arranged at a cost of £40.00. If you do not wish to use our collection service then any alternative return method will need to be arranged at your own cost.

Any Other Returns

Before sending your item back, please download and complete our returns form, completing all relevant sections and including this with your return - if your item is returned without the form included it can take significantly longer to correctly process the item and review the issue.

Returns Form

Item/s must be returned in the original packaging (in a resaleable condition), unused and unopened within 14-days of notification to cancel.

If Collect+ is not being used, then proof of postage will be required as Cycle Solutions is unable to accept liability for loss or damage whilst in transit back to us.


Additional non-returnable items:

· Any products that due to hygiene reasons, cannot be returned. This includes all undergarments (including socks) as well as padded shorts,bibshorts, tights, etc

· Downloadable software products

· Some health and personal care items

· CD/DVD's or software that have been opened

· Any Food or drink products that, upon return, will be within 3 months of the sell-by date

· Gift cards

· Customised bike orders

Your refund will be done with 30 days of receipt of returned goods and will not be done until the goods are received and inspected.

Please do not send your purchase back to the manufacturer.

Returning a product under the WEEE Regulations.

What do the WEEE regulations mean?

WEEE (The Waste Electrical and electronic Equipment) Directive is UK law that governs the disposal and recycling of all electrical items. The law, introduced in 2014, puts the emphasis on the producers and suppliers of electrical equipment to pay for the collection, treatment and recovery of waste electricals.

As a retailer that sells new Electrical and Electronic products we will take back old items, provided it is a like-for-like replacement when you buy a new product from us. We will then responsibly dispose of the old product ensuring that it doesn’t end up in landfill.

Old products must be returned directly to our shop or head office (details below) within 28 days of your new purchase, clearly marked as WEEE.

Cycle Solutions Head Office
6 Europa way
Fforestfach
Swansea
SA5 4AJ

Disposing of equipment yourself

If you choose not to send your equipment back to us for disposal then you can dispose of any electricals or electronics yourself at your local recycling centre, who will dispose of your equipment via a controlled recycling process.

You can locate your closest collection site by entering your postcode at www.recycle-more.co.uk

What products fall under WEEE Regulations?

As part of the WEEE regulations, all electrical and electronic goods produced after August 2005 that fall under WEEE regulations should be clearly marked with a crossed-out bin symbol which means they should not be included with household waste so that they can be recycled

As a responsible retailer we take all steps possible to ensure that our business meets all requirements of any EU & UK consumer protection laws, particularly the Consumer Contracts (Information, Cancellation & Additional Charges) Regulations 2013 and other legislation specific to the products that we sell.

If you have any concerns or questions regarding this process, please contact us at [email protected].

Warranty

Uprise offer a full 18-month warranty on bikes purchased through our online shop, in line with the guidance set out in the Consumer Rights Acts 2015.

In the unfortunate event of your purchase being affected by a warranty-covered fault, please inform us by email ([email protected]).

Please note that our Aftersales Department's operating hours are 08:30AM to 17:30PM Monday to Friday.

Once a warranty claim has been placed, we will review the claim and advise on an appropriate course of action, please do not return your item until you have spoken to an advisor.

Please allow a minimum of 15 working days from receipt of returned item(s) for repair/replacement under warranty. We expect to be able to return the items within a maximum 30 working days, however, specific timescales can change based on the requirements of the individual case.

Most bikes and accessories are covered by a standard manufacturer's warranty but please be aware that there are faults/issues that are NOT covered by your warranty. This includes.

  • Any normal wear and tear from using the product.
  • Improperly installed or repaired products (always follow the instruction guides for any product set-up or installation)
  • Modifications to products
  • Stripped pedal threads - a comprehensive guide on the correct installation of pedals is sent out with every bike.
  • E-bike batteries and associated componentry

Returns

We operate a 365-day return policy so that you can purchase with complete peace of mind.

Once you have spoken to our aftersales department, you may need to return the item, you can arrange this via any courier/delivery service that you choose.

Bikes

Please contact us in advance if you wish to return a bike as Collect+ will not accept large items

If a bike needs to be returned due to an incorrect size being ordered, or the item is no longer wanted or ordered in error, then collection can be arranged at a cost of £40.00. If you do not wish to use our collection service then any alternative return method will need to be arranged at your own cost.

Any Other Returns

Before sending your item back, please download and complete our returns form, completing all relevant sections and including this with your return - if your item is returned without the form included it can take significantly longer to correctly process the item and review the issue..

Returns Form

Item/s must be returned in the original packaging (in a resaleable condition), unused and unopened within 14-days of notification to cancel.

If Collect+ is not being used, then proof of postage will be required as Cycle Solutions is unable to accept liability for loss or damage whilst in transit back to us.


Additional non-returnable items:

Any products that due to hygiene reasons, cannot be returned. This includes all undergarments (including socks) as well as padded shorts, bibshorts, tights, etc

• Downloadable software products

• Some health and personal care items

• CD/DVD's or software that have been opened

• Any Food or drink products that, upon return, will be within 3 months of the sell-by date

• Gift cards

• Customised bike orders

Your refund will be done with 30 days of receipt of returned goods and will not be done until the goods are received and inspected.

Please do not send your purchase back to the manufacturer.

Returning a product under the WEEE Regulations.

What do the WEEE regulations mean?

WEEE (The Waste Electrical and electronic Equipment) Directive is UK law that governs the disposal and recycling of all electrical items. The law, introduced in 2014, puts the emphasis on the producers and suppliers of electrical equipment to pay for the collection, treatment and recovery of waste electricals.

As a retailer that sells new Electrical and Electronic products we will take back old items, provided it is a like-for-like replacement when you buy a new product from us. We will then responsibly dispose of the old product ensuring that it doesn't end up in landfill.

Old products must be returned directly to our shop or head office (details below) within 28 days of your new purchase, clearly marked as WEEE.

Uprise Bikes

6 Europa way

Fforestfach

Swansea

SA5 4AJ

Disposing of equipment yourself

If you choose not to send your equipment back to us for disposal then you can dispose of any electricals or electronics yourself at your local recycling centre, who will dispose of your equipment via a controlled recycling process.

You can locate your closest collection site by entering your postcode at www.recycle-more.co.uk

What products fall under WEEE Regulations?

As part of the WEEE regulations, all electrical and electronic goods produced after August 2005 that fall under WEEE regulations should be clearly marked with a crossed-out bin symbol which means they should not be included with household waste so that they can be recycled

As a responsible retailer we take all steps possible to ensure that our business meets all requirements of any EU & UK consumer protection laws, particularly the Consumer Contracts (Information, Cancellation & Additional Charges) Regulations 2013 and other legislation specific to the products that we sell.

If you have any concerns or questions regarding this process, please contact us at [email protected].

Trek Powerfly FS+ 4 800Wh Gen 4 Electric Mountain Bike - Mercury

Season:2026

Brand:Trek

Code:57351GRY

Powerfly FS+ 4 800W — Full-power e-MTB for alpine trails

Overview

The Powerfly FS+ 4 800W is a full-suspension electric mountain bike built for long days in the hills. Its high-capacity battery and powerful Bosch motor provide sustained assistance for steep climbs, while a RockShox suspension package and robust component set keep you riding confidently on rough tracks.

Ride and handling

Adjustable geometry, a stout aluminium frame and 120 mm rear / 130 mm front travel deliver a balanced mix of pedalling efficiency and trail control. Internal routing, Motor Armor and a removable integrated battery preserve a clean, durable build for regular off-road use.

Practicality and fit

The bike includes mounting points for racks and mudguards, a dropper seatpost with size-specific travel, and wide Bontrager handlebars for control. It’s spec’d to accept large tyres up to 29x2.50" on most sizes for traction and stability.

Key Features:

  • Integrated Bosch e-system: Bosch PowerTube 800 Wh battery, Bosch Performance Line CX motor with up to 25 km/h in EU/APAC) and Bosch Purion 200 controller.
  • Full RockShox suspension: RockShox Recon Silver fork with 130 mm travel and RockShox Deluxe Select R shock with 120 mm rear travel (210x50 mm) for a smooth, composed ride.
  • Robust frame and adjustability: Alpha Platinum Aluminium frame with RIB 2.0 removable battery, Motor Armor, Mino Link adjustable geometry, ABP and UDH compatibility.
  • Reliable drivetrain: Shimano U6000 10-speed shifter and CUES derailleur with LINKGLIDE 11-48 cassette and 36T FSA chainring for precise, durable gearing.
  • Strong stopping power: Tektro Gemini SL four‑piston hydraulic brakes with 203 mm CentreLock rotors (frame/fork max rotor size guidance included).
  • Wheel and tyre package: Bontrager Line TLR 30 tubeless-ready rims with Shimano TC500 hubs and Bontrager Gunnison Pro XR tyres (27.5" on S, 29" on M–XL) with tubeless sealant included.
  • Trail-ready cockpit and dropper: Bontrager Comp handlebars, Blendr-compatible stem and Bontrager Line Dropper seatpost (size-specific travel: 100 mm for S; 170 mm for M–XL) for on-the-fly fit adjustment.
  • Practical accessories and limits: Bosch 2A charger included, VP-536 platform pedals, mudguard compatibility and a maximum total weight limit of 136 kg (300 lb).
Technical Information
  • Frame: Alpha Platinum Aluminium, Removable Integrated Battery (RIB 2.0), tapered headtube, guided internal routing, Motor Armor, angle-adjust headset, 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 Recon Silver, Solo Air spring, Motion Control damper, lockout, tapered steerer, 42 mm offset, Boost110, Maxle Stealth, mudguard mounts, 130 mm travel
  • Shock: RockShox Deluxe Select R, 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: Size: S, M, L, XL — Bontrager Line TLR 30, Tubeless-Ready, 28-hole, Presta valve; Size: S, M, L, XL — Bontrager Line TLR 30, Tubeless-Ready, 32-hole, Presta valve
  • Spokes: 14 g stainless steel, black
  • Tyre: Size: S — Bontrager Gunnison Pro XR, Tubeless-Ready, wire bead, 60 tpi, 27.5x2.40"; Size: M, L, XL — Bontrager Gunnison Pro XR, Tubeless Ready, dual compound, aramid bead, 60 tpi, 29x2.40"
  • Tyre part: Bontrager TLR sealant, 180 ml/6 oz
  • Rim strip: Bontrager TLR
  • Max tyre size: Frame: 29x2.50" (S: 27.5x2.50"), Fork: see manufacturer
  • Battery: Bosch PowerTube 800 Wh, smart system
  • Charger: Bosch standard 2A, 230V, smart system
  • Computer: Bosch Purion 200
  • Motor: Bosch Performance Line CX, 20 mph / 32 km/h max assist (25 km/h max assist in EU and APAC)
  • 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: 38T
  • Saddle: Bontrager Verse P3, steel rails
  • Seatpost: Size: S — Bontrager Line Dropper, 100mm travel, MaxFlow, internal routing, 31.6 mm, 310 mm length; Size: M, L, XL — Bontrager Line Dropper, 170 mm travel, MaxFlow, internal routing, 31.6 mm, 450 mm length
  • Handlebar: Bontrager Comp, alloy, 31.8 mm, 40mm rise, 780 mm width
  • Grips: Size: S, M, L, XL — Bontrager XR Trail Comp, nylon lock-on; Size: S, M, L, XL — Trek Line Comp, nylon 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: Tektro Gemini SL 4 piston hydraulic brake
  • Brake rotor: Tektro, CentreLock, 203 mm
  • Rotor size: Max brake rotor sizes – Frame: 220 mm, min 180 mm, Fork: see fork manufacturer
  • Mudguard: Trek 27.5" custom fender
  • Weight limit: This bike has a maximum total weight limit (combined weight of bicycle, rider and cargo) of 136 kg (300 lb).

- Please Note – Whilst we endeavour to provide up-to-date information, the manufacturer's specifications and designs can change without prior notice.

Sizing Information
SizeRider HeightInseam
S

155 - 165 cm

5'1" - 5'5"

74 - 78 cm

29" - 31"

M

165 - 177 cm

5'5" - 5'10"

79 - 83 cm

31" - 33"

L

177 - 188 cm

5'10" - 6'2"

84 - 89 cm

33" - 35"

XL

188 - 195 cm

6'2" - 6'5"

89 - 91 cm

35" - 36"

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