Trek Powerfly FS 4: Conquer Trails with Confidence
Shred trails with confidence on the Trek Powerfly FS 4, a full-suspension electric mountain bike built to conquer any adventure. The plush suspension smooths out rough terrain, while the powerful Bosch drive system effortlessly propels you up climbs and across endless stretches of singletrack. Trek keeps you informed with the latest Bosch technology, including an LED remote, and eBike Flow app connectivity. Providing activity tracking, navigation, and Bluetooth connectivity, ensuring you stay on track and maximize your ride. Whether you're a seasoned rider or just starting to explore the world of e-MTBs, the Powerfly FS 4 is your key to unlocking new mountain biking experiences.
Built To Perform
Climb to new heights and explore the miles beyond with an e-MTB that supercharges the fun in every ride. The Powerfly helps you take on steeper terrain, ride faster and go further thanks to the powerful Bosch Performance Line CX motor. Now with advanced smart-system technology and a sleek new LED remote, the Powerfly gives you more connection and control on every ride, so you can explore more of the world just the way you want to.
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 Trek 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.
Active Braking Pivot
Active Braking Pivot allows Treks 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 Trek full suspension electric mountain bike into a personalized experience. Use it to customize your motor's assist behavior, 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.
Geometry
- MODEL YEAR:
- Latest Models
- FRAME:
- 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
- FRAME MATERIAL:
- Aluminium
- FORK BRAND:
- SR Suntour
- FORK:
- SR Suntour XCR 34, air spring, LO R damper, hydraulic lockout, tapered steerer, oversized crown for eMTB, Boost110, 15 mm bolt-on thru axle, 100 mm travel
- FORK TRAVEL:
- 100 mm
- REAR SHOCK:
- SR Suntour Edge R, 190 mm x 45 mm
- MOTOR:
- Bosch
- MOTOR CONTROLLER:
- Bosch Smart System LED Remote
- DISPLAY:
- Not Included
- DRIVE UNIT:
- Bosch Peformance Line CX (85 Nm )
- BATTERY:
- Bosch PowerTube 625 Wh Battery
- RANGE EXTENDER:
- N/A
- CHARGER:
- Bosch standard 2A, 230V, smart system
- WHEEL SIZE:
- 29
- WHEELS:
- 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 - Bontrager Kovee, double-wall, Tubeless-Ready, 32-hole, 23 mm width, Pr
- TYRES:
- Bontrager XT3 Comp, wire bead, 30 tpi Size: XS , S: 27.5x2.40" Size: M , L , XL: 29x2.40"
- DROPPER SEATPOST:
- Yes
- SEATPOST:
- TranzX JD-YSP18, 130 mm travel, internal routing, 31.6 mm
- SADDLE:
- Bontrager Arvada, steel rails, 138 mm width
- CRANKSET:
- FSA Bosch CK-220, 36T ring, 165 mm length
- STEM:
- Bontrager Comp, 31.8 mm, Blendr compatible, 7-degree
- GRIPS:
- Bontrager XR Trail Comp, nylon lock-on
- SHIFTERS:
- Shimano U4000, 9-speed
- BRAKE BRAND:
- Tektro
- HYDRAULIC BRAKES:
- Yes
- BRAKES:
- Tektro HD-M275 hydraulic disc
- REAR DERAILLEUR:
- Shimano CUES U4000
- CHAIN:
- Shimano LG500, 9/10/11-speed
- NUMBER OF GEARS:
- 9 Speed
- PEDALS:
- Available for Purchase
- FRONT MUDGUARD:
- MTB Monster Front Fender
- EXTRAS:
- N/A
- TYPE OF BIKE:
- Cross Country
- DESIGNED FOR:
- Speed and efficiency on the climbs, perfect for covering longer distances quickly due to a lightweight frame.
- IDEAL TERRAIN:
- Smoother, single-track off-road trails with minimal technical features. Can be used for both road and off-road riding.
- PLEASE NOTE:
- Trek reserve the right to make changes to the product information contained on this site at any time without notice, including with respect to equipment, specifications, models, colours, materials and pricing.
