Trek Powerfly FS+ 4 Gen 4 2025
The Trek Powerfly FS+ 4 Gen 4 2025 is a cutting-edge e-MTB designed to conquer challenging trails. Powered by the latest Bosch Performance CX Gen 5 motor and a Bosch PowerTube 600 Wh battery, this bike offers ample power and range for extended rides. If you're seeking a full-suspension EMTB that can effortlessly conquer challenging trails while delivering a smooth and efficient ride, this Powerfly FS+4 ticks every box.
The FS+ 4 full suspension electric mountain bike features a durable aluminum frame with Trek's Active Braking Pivot (ABP) suspension system, ensuring a smooth and controlled ride. Equipped with a RockShox Recon Silver fork, the Powerfly FS+ provides exceptional comfort and a responsive ride on various terrain.
Conquer Climbs
The Powerfly FS+ gives you the powerful boost you crave on high alpine climbs. Say goodbye to range anxiety and hello to the freedom to venture deeper into the mountains, discover hidden trails, and conquer epic climbs, all without worrying about running out of charge.
Bosch Performance Line CX Gen 5 Motor
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.
600 Wh Bosch PowerTube RIB 2.0 Battery
RIB 2.0 removable integrated battery not only provides convenience for travel and storage but also ensures a smooth and quiet ride, free from any distracting rattles.
Carry Your Equipment With Ease
Attach pannier bags for extended trips, install bright lights for night-time adventures, or add a rack for carrying extra cargo. The Powerfly FS+ gives you the flexibility to carry everything you need, so you can focus on the joy of the ride.
Bosch PowerMore Compatibility
Want to ride even further? The Powerfly FS+ is compatible with Bosch PowerMore booster batteries, so you can explore from dawn to dusk.
Geometry
15.5" | 17.5" | 19.5" | 21.5" | |
---|---|---|---|---|
Frame size number | 15.5" | 17.5" | 19.5" | 21.5" |
Frame size letter | S | M | L | XL |
Wheel size | 27.5" | 29" | 29" | 29" |
A - Seat tube | 38.0 | 40.0 | 42.0 | 45.0 |
B - Seat tube angle | 71.1° | 71.3° | 71.2° | 72.4° |
Effective seat tube angle | 77.0° | 77.0° | 77.0° | 77.0° |
C - Head tube length | 13.0 | 11.0 | 13.0 | 15.0 |
D - Head angle | 65.0° | 66.0° | 66.0° | 66.0° |
E - Effective top tube | 56.3 | 59.5 | 63.0 | 65.4 |
F - Bottom bracket height | 33.0 | 33.5 | 33.5 | 33.5 |
G - Bottom bracket drop | 3.0 | 4.5 | 4.5 | 4.5 |
H - Chainstay length | 45.8 | 46.1 | 46.1 | 46.1 |
I - Offset | 4.4 | 4.4 | 4.4 | 4.4 |
J - Trail | 12.3 | 12.5 | 12.5 | 12.5 |
K - Wheelbase | 120.1 | 122.3 | 125.7 | 129.0 |
L - Standover | 75.6 | 78.0 | 77.5 | 77.8 |
M - Frame reach | 42.5 | 45.0 | 47.5 | 50.0 |
N - Frame stack | 59.7 | 62.9 | 64.7 | 66.6 |
- FRAME:
- Alpha Platinum, Removable Integrated Battery (RIB 2.0), tapered headtube, internal routing, Motor Armour, rack and mudguard mounts, ABP, Boost 148, 120 mm travel
- FRAME MATERIAL:
- Aluminium
- FORK BRAND:
- RockShox
- FORK:
- RockShox Recon Silver RL, Solo Air, Motion Control damper, lockout, tapered steerer, 42 mm offset, Boost110, 15 mm Maxle Stealth, 130 mm travel
- FORK TRAVEL:
- 130 mm
- REAR SHOCK:
- RockShox Deluxe Select
- MOTOR:
- Bosch
- MOTOR CONTROLLER:
- Bosch Smart System Purion 200
- DISPLAY:
- Not Included
- DRIVE UNIT:
- Bosch Performance Line CX Gen 5 (85 Nm ) Smart System
- BATTERY:
- Bosch PowerTube 600 Wh Battery
- RANGE EXTENDER:
- Bosch PowerMore 250Wh Available for Purchase
- CHARGER:
- Bosch standard 2A, 230V, smart system
- WHEEL SIZE:
- 29
- WHEELS:
- Rear Hub: Shimano TC500 alloy, CentreLock, 148x12 mm thru axle / Skewer Rear: Bontrager Switch thru-axle, removable lever
- TYRES:
- (S): Bontrager Gunnison Pro XR, Tubeless-Ready, wire bead, 60 tpi, 27.5x2.40" / (M , L , XL):Bontrager Gunnison Pro XR, Tubeless Ready, dual compound, aramid bead, 60 tpi, 29x2.40"
- DROPPER SEATPOST:
- Yes
- SEATPOST:
- (S): Bontrager Line Dropper, 100mm travel, MaxFlow, internal routing, 31.6 mm, 310 mm length / Bontrager Line Dropper, 170 mm travel, MaxFlow, internal routing, 31.6 mm, 450 mm length
- SADDLE:
- Bontrager Verse P3, steel rails
- CRANKSET:
- FSA Bosch CK-220, 36T ring, 165 mm length
- STEM:
- Bontrager Comp, 31.8 mm, Blendr compatible, 7-degree, 50 mm length
- GRIPS:
- Bontrager XR Trail Comp, nylon lock-on
- SHIFTERS:
- Shimano U6000, 10-speed
- BRAKE BRAND:
- Tektro
- HYDRAULIC BRAKES:
- Yes
- BRAKES:
- Brake: Tektro Gemini SL 4 piston hydraulic brake / Brake Rotor: Tektro, CentreLock, 203 mm
- REAR DERAILLEUR:
- Shimano CUES U6000 GS
- CHAIN:
- Shimano LG500, 9/10/11-speed
- NUMBER OF GEARS:
- 10 Speed
- PEDALS:
- VP-536 nylon platform
- FRONT MUDGUARD:
- MTB Monster Mudguard
- EXTRAS:
- Bontrager TLR sealant, 180 ml/6 oz
- 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.