Trek Powerfly FS 4 Gen 3

£4,175.00
XS
S
M
L
XL

Available NOW!



The Powerfly FS 4 is a trail-ready full-suspension electric mountain bike that's eager to roll onto the singletrack. The plush suspension set-up soaks up rough terrain and the powerful Bosch electric drive system boosts your capacity to crush long and punchy climbs and mile after mile of singletrack. The new LED remote and Intuvia 100 display pair with the eBike Flow app to give you activity tracking, navigation and Bluetooth connectivity.



You want to boost your mountain biking capabilities with a high-end pedal-assist system. You plan to hit the trail often, and want an upgraded parts spec that'll help you push your limits.



A durable aluminium frame with an ultra user-friendly Removable Integrated 625 Wh Battery, a powerful Bosch Performance CX (250 Wh, 85 Nm) motor that helps you sustain speeds of up to 20 mph (25 km/h in Europe) and a smart system LED controller and Intuvia 100 display. Plus, an SR Suntour 120 mm suspension fork, 100mm of rear travel, a 10-speed Shimano drive train, powerful hydraulic disc brakes and a dropper post.



This full-suspension e-MTB boosts comfort and capability on the trail with just the right amount of power to get you through long miles and up steep climbs. Its suspension package cushions rough trails so you can comfortably reach new destinations.

- You'll get a ride that keeps you comfortable while you tackle it all thanks to its front and rear suspension package that gobbles up bumps

- The Intuvia 100 display gives you ride info, connects with your Bluetooth-enabled devices and has a built-in theft-prevention feature

- The dropper post lets you lower your saddle on the fly so it's out of the way on descents

- The size S frame features a curved top tube that makes standing over the bike easier. Plus, Smart Wheel Sizing means you'll get the fastest wheel that fits ? 29? wheels on larger frames, 27.5? wheels on smaller frames



Removable Integrated Battery

RIB is a one-piece battery and cover with a built-in handle that can easily be removed and re-installed in the frame with no tools and no hassle. It?s the most convenient way to remove your battery for transport, security or just easier charging.





Bosch Performance Line CX motor

The Bosch Performance Line CX sets the standard for eMTB performance with up to 85 Nm of torque and an intelligent eMTB mode with Extended Boost that automatically adjusts the amount of assist based on the terrain.



Bosch LED Remote

The Bosch smart system LED remote lets you easily change assist modes, activate walk mode or turn on optional lights. The bright LEDs are easy to see in any light, and show you your battery level and assist mode at a glance.





Bosch Intuvia 100 display

The Bosch smart system Intuvia 100 display puts your ride data front and centre with a large-font high-contrast display that's easy to read in any weather. You get eBike Lock theft protection, and best of all, it's completely wireless and connects to the remote via Bluetooth.



Active Braking Pivot

Active Braking Pivot allows our engineers to tune how the suspension reacts to acceleration and braking forces independently. That means you get more confident control when you need it most.





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.




Membership options:

Individual Rider membership: £50*

  • Fee: £50 per annum
  • Membership benefits:
    • £30 Off one Standard Level 1, 2 or 3 Service
    • 10% Off any additional in-store servicing or repair labour
    • 10% Off in-store and online on Parts, Accessories & Clothing
    • Unlimited Chain, Brake Pad, Disc and Rim checks.
    • Service reminders
  • Limited to one Membership holder
  • Bikes must be owned and used by the membership holder
  • Bikes must be listed at Bay Cycles on joining or at the earliest opportunity prior to any servicing to ascertain their eligibility.

    *Terms and Conditions apply - Click here for full details

    Family / Joint membership: £90*

      • Fee: £90 per annum
      • Membership benefits:
        • £30 Off on two separate Standard Level 1, 2, or 3 Services
        • 10% Off any additional in-store servicing or repair labour
        • 10% Off in-store and online on Parts, Accessories & Clothing
        • Unlimited Chain, Brake Pad, Disc and Rim checks.
        • Service reminders
        • 10% off servicing of any kids' bikes
      • Limited to 2 membership holders residing at the same address
      • Bikes must be owned by the membership holders
      • Bikes must be listed at Bay Cycles on joining or at the earliest opportunity prior to any servicing to ascertain their eligibility.

      *Terms and Conditions apply - Click here for full details

      BAY CYCLES 12 MONTH SERVICE CLUB MEMBERSHIP TERMS AND CONDITIONS

      1. INTRODUCTION

      Welcome to Bay Cycles 12 Month Service Club Membership. These Terms and Conditions ("Terms") govern your membership in the Bay Cycles Service Club ("Service Club") and the benefits provided through this membership. By enrolling in the Service Club, you agree to these Terms.

      2. WHO WE ARE

      Bay Cycles is the trading name of Ride The Bay Limited.
      Company Registration Number: 10594795
      Registered Address: 15 Fore Street, St. Marychurch, Torquay, Devon, England, TQ1 4PU

      3. MEMBERSHIP OPTIONS AND FEES

      3.1 INDIVIDUAL RIDER MEMBERSHIP:

      • Fee: £50 per annum
      • Membership benefits:
        • £30 Off one Standard Level 1, 2 or 3 Service
        • 10% Off any additional in-store servicing or repair labour
        • 10% Off in-store and online on Parts, Accessories & Clothing
        • Unlimited Chain, Brake Pad, Disc and Rim checks.
        • Service reminders
      • Limited to one Membership holder
      • Bikes must be owned and used by the membership holder
      • Bikes must be listed at Bay Cycles on joining or at the earliest opportunity prior to any servicing to ascertain their eligibility.
      3.2 FAMILY / JOINT MEMBERSHIP:

      • Fee: £90 per annum
      • Membership benefits:
        • £30 Off on two separate Standard Level 1, 2, or 3 Services
        • 10% Off any additional in-store servicing or repair labour
        • 10% Off in-store and online on Parts*, Accessories & Clothing
        • Unlimited Chain, Brake Pad, Disc and Rim checks.
        • Service reminders
        • 10% off servicing of any kids' bikes 
      • Limited to 2 membership holders residing at the same address
      • Bikes must be owned by the membership holders
      • Bikes must be listed at Bay Cycles on joining or at the earliest opportunity prior to any servicing to ascertain their eligibility.

      4. MEMBERSHIP DURATION

      Your membership is valid for 12 months from the date of purchase. We will send you a reminder when your membership is approaching its expiration date.

      5. INCLUSION AND EXCLUSION CRITERIA FOR BIKES

      5.1 INCLUSION CRITERIA:

      • Types of Bicycles: Both non-electric and electric bicycles are eligible, provided the latter comply with United Kingdom Electric Pedal Assist Cycle (EPAC) law.
      • Serviceable Condition: Bikes must be deemed serviceable, not beyond repair, and safe to ride.
      • Repairable Condition: Bikes must be repairable with parts that are available and obtainable by Bay Cycles.
      • Unmodified and Unaltered: Bikes must not be modified or altered in any way that would render them unsafe or illegal, as determined by the Bay Cycles qualified technician.
      5.2 EXCLUSION CRITERIA:

      • Unserviceable Bikes: Bikes deemed beyond repair and unsafe to ride, as assessed by a qualified Bay Cycles technician, will not be eligible for inclusion within Service Club member benefits.
      • Modified Bikes: Bikes that have been altered or modified in a way that renders them unsafe or illegal, as determined by Bay Cycles, will not be eligible for inclusion within Service Club member benefits.
      • Unrepairable Bikes: The availability of bike parts is essential for providing comprehensive benefits under the Service Club membership. Consequently, certain unusual or uncommon bikes, as well as specific brands for which Bay Cycles cannot obtain the necessary replacement parts, may be exempt from Service Club membership.

      If a Bay Cycles technician determines that any of the exclusion criteria listed in 5.2 apply after you have purchased a Service Club membership online or in-store, Bay Cycles will provide a full or partial refund. The amount of the refund will depend on whether you have already received any Service Club benefits or discounts since the date of your membership purchase.

      6. USE OF MEMBERSHIP

      • The membership benefits are non-transferable and can only be used by the registered member(s).
      • Membership discounts cannot be combined with other promotions or offers unless explicitly stated by Bay Cycles.
      • Discounts apply to purchases made directly at Bay Cycles retail locations and online at baycycles.co.uk.
      • You may start using your Membership discounts in-store as soon as your membership payment has been received.
      • To utilise online membership benefits, your membership must be activated by a Bay Cycles staff member. Additionally, you will need to create an account on our website, baycycles.co.uk, using the same email address registered with Bay Cycles in-store.
      • Product discounts are limited to products sold by Bay Cycles in-store and online, and the availability of these products can be subject to change without notice.
      • Membership discounts do not apply to the purchase of new bicycles or frames.
      • Individual Rider members receive a £30 discount on one Standard Service per year of membership. Family/Joint memberships include a £30 discount on two Standard Services per year of membership. Any additional bike servicing or repair labour costs are eligible for a 10% discount.
      • Bikes wishing to be serviced using membership benefits must be listed on sign-up to the membership or at the earliest opportunity prior to any servicing to ascertain their eligibility.
      • Listing of bikes is required to enable better forecasting of replacement parts and quicker service turnaround for Club members. Bikes must meet the inclusion criteria and not be subject to any of the exclusion criteria as listed in 5.1 & 5.2 of these terms and conditions.

      7. CONTACT AND MARKETING CONSENT

      By becoming a Bay Cycles Service Club member, you consent to Bay Cycles contacting you for marketing and promotional purposes via telephone, email, and SMS messaging. This consent allows us to send service reminders and inform you about other membership benefits. You can amend or withdraw your consent at any time by contacting us. For more information on how we handle your data, please review our Privacy Policy.

      8. MEMBER IDENTIFICATION

      You may be asked to present a form of photo identification, such as a driving licence or passport, to confirm your identity when using your membership benefits. To verify your identity, membership details will be stored securely in our internal computer system in accordance with current UK Data Protection laws. For more information about how we handle your data, please refer to our Privacy Policy.

      9. TERMINATION AND MISUSE OF MEMBERSHIP

      Bay Cycles reserves the right to terminate your membership at any time if you violate these Terms. If your membership is terminated by us due to a violation of these terms, you will not be entitled to a refund of the Membership Fee. Specific conditions leading to termination include, but are not limited to:

      • Committing fraud or attempting fraud regarding the membership.
      • Misusing the membership in breach of these Terms.
      • Engaging in inappropriate conduct at Bay Cycles retail stores, on the website, or towards any Bay Cycles staff member, either on or off the property.
      • Exceeding £3,000 per month in purchases for personal use using the membership discount.

      Additionally, membership sharing, attempting to register multiple memberships, or the sale, loan, or transfer of benefits to third parties will result in the membership being frozen or terminated without refund.

      10. COOLING-OFF PERIOD AND CANCELLATION

      You have the right to cancel your membership and receive a full refund during a 14-day Cooling-Off Period, starting from the day you purchased your membership, provided you have not used any of the membership benefits. If you use any benefits during this period or attempt to use benefits after requesting cancellation, you will not be entitled to a refund and will be liable for the full membership fee. To cancel your membership within the Cooling-Off Period, please contact our customer service team to process your request.

      11. AMENDMENTS TO TERMS AND BENEFITS

      Bay Cycles reserves the right to amend these Terms and the benefits available from time to time, including upon renewals. Members will be notified of any changes at least 30 days before the changes take effect. If you do not agree with the changes, you have the right to cancel your membership within this 30-day notice period and receive a pro-rata refund for any remaining membership term.

      12. LIABILITY AND FORCE MAJEURE

      Bay Cycles is not responsible for any loss or damage resulting from the use of the Service Club membership. Our liability is limited to the value of the Membership Fee. We are not liable for any failure to perform or delay in performance of our obligations due to events outside our control, such as strikes, riots, natural disasters, or failure of public or private telecommunications networks.

      13. GOVERNING LAW

      These Terms and your membership in the Service Club are governed by the laws of England. Any disputes arising out of or in connection with these Terms will be subject to the exclusive jurisdiction of the courts of England.

      14. CONTACT INFORMATION

      For any questions or concerns regarding these Terms or your membership, please contact Bay Cycles at:

      Bay Cycles
      15 Fore Street, St Marychurch,
      Torquay, TQ1 4PU, England
      Phone: 01803 316785
      Email: ridethebay@baycycles.co.uk

      15. AGREEMENT

      By purchasing, you acknowledge that you have fully read, understand, and agree to the Terms and Conditions as stated above.

      Frame Size XS, UNI, Aluminium, Alpha Platinum Aluminium, Removable Integrated Battery (RIB), tapered head tube, internal routing, Motor Armour, rocker link, rack and mudguard mount, ABP, Boost148, 100 mm travel
      Wheel Size Front 27.5
      Wheel Size Rear 27.5
      Fork SR Suntour XCR 34, air spring, LO R damper, hydraulic lockout, tapered steerer, 44 mm offset, oversized crown for eMTB, Boost110, 15 mm bolt-on thru axle, 100 mm travel
      Fork Unknown
      Gears DERAILLEUR, Shimano, 1 Gears
      Tyres BONTRAGER,
      Pedals UNBRANDED,
      Wheels UNKNOWN, Alex MD35, tubeless compatible, 32-hole, 35 mm width, Presta valve Bontrager sealed bearing, alloy axle, 6-bolt, Boost110, 15 mm thru axle Bontrager alloy, sealed bearing, alloy axle, 6-bolt, Shimano 8/9/10 freehub, Boost148, 12 mm thru axle
      Shifters SHIMANO, Shimano Deore M4100, 10 speed,
      Kickstand UNKNOWN, Unknown
      Front Brake SH, Tektro, 6-bolt, 203 mm Max brake rotor size, Disc brake with hydraulic actuation
      Rear Brake SH, Tektro, 6-bolt, 203 mm Max brake rotor size, Disc brake with hydraulic actuation
      Rear Derailleur SHIMANO, Shimano Deore M5120, long cage
      Crankset FSA, FSA Bosch CK-220, 36T ring, 165 mm length
      Chain KMC, KMC X10, 10-speed
      Headset FSA, FSA IS-2
      Handlebar BONTRAGER, Bontrager alloy, 31.8 mm, 15 mm rise, 720 mm width
      Stem BONTRAGER, Bontrager alloy, 31.8 mm, Blendr-compatible, 7-degree, 60 mm length
      Bartape / Grips BONTRAGER
      Seatpost TRANZX, TranzX JD-YSP18, 100 mm travel, internal routing, 31.6 mm, 361 mm length
      Seatpost Clamp UNBRANDED
      Saddle BONTRAGER, Bontrager Arvada, steel rails, 138 mm width
      Front Light UNKNOWN
      Rear Light UNKNOWN
      Display BOSCH, Bosch Intuvia 100, smart system, handlebar (central), Bosch
      Battery Capacity 625
      Battery Brand BOSCH
      Battery Model Bosch PowerTube 625Wh, smart system
      Drivetrain Brand Bosch
      Ebike Type Description Normal
      Sensor Type PEDALFORCE
      Colours LAVA/ TREK BLACK, MATTE BLACK /GLOSS BLACK
      Sizes L, M, S, XL, XS
      Brand Trek
      Barcodes 601842778272, 601842778289, 601842778296, 601842778302, 601842778319, 601842778326, 601842778333, 601842778340, 601842778357, 601842778364
      SKUs / Part Numbers 5277922, 5277923, 5277924, 5277925, 5277926, 5277927, 5277928, 5277929, 5277930, 5277931

      Please note: Manufacturers can sometimes change the specification of the products from time to time.

      Need help with your order?

      Give one of our team a call now on 01803 316785. We are here Tuesday - Saturday 9am - 5:30pm.

      Alternatively, email us now.