New RIB 2.0
Easily removable, fully integrated battery with an added latch for security during removal and charging.
Trek
Trek Powerfly FS+ 4 Gen 4 – Mercury – Dark web
4699,00 €
Incl. VAT 25,5 %
Buy now, pay later
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Pay 322,51 €/month for 12 months (0% rate).
Start-up fee: 0,00 €
Processing fee: 0,00 €
Total of €3 859,73 over 12 months.
Description
Bosch Performance Line CX motor offers strong, natural-feeling support for climbs.
Robust frame, strong motor, removable battery, and versatile configuration make Powerfly FS+ 4 a solid option for all-purpose electric mountain biking.
Powerfly FS+ 4 includes a robust Alpha Platinum aluminium frame, Bosch Performance Line CX motor (85 Nm), removable 600 Wh battery and adjustable geometry with Mino Link. RockShox suspension (130/120 mm travel) improves comfort and control. Shimano CUES drivetrain with LINKGLIDE increases durability, while four-piston hydraulic disc brakes offer reliable stopping power. Tubeless-ready Bontrager wheels improve ride quality, and accessory mounts add to versatility.
What you get
Key features
- Sturdy Alpha Platinum aluminium frame with full suspension improves comfort and control on varied terrain.
- Bosch Performance Line CX motor offers smooth, robust assistance for steep climbs.
- Removable 600 Wh battery is easy to charge or swap, and the integration keeps it tidy and secure.
- Shimano CUES drivetrain is user-friendly and durable for e-bike use.
- Four-piston hydraulic disc brakes deliver strong braking performance.
- Compatibility with range extenders, racks, and mudguards enhances utility.
Tech up close
Features that matter
Extend your ride
Compatible with the 250 Wh PowerMore range extender for longer trips without battery swaps.
Light, quiet engine
Bosch Performance Line CX motor combines a lightweight build and low noise with strong, natural-feeling assist on tough climbs.
Massive range for epic rides
Opt for an 800 Wh battery for longer range, or use the lighter 600 Wh for more agile handling; both options can be fitted by a dealer.
Customise your ride
Powerfly-specific mudguards and racks for personalising your setup for everyday use or adventures.
Bosch eBike Flow app
Adjust motor settings, track rides, and connect with apps like Strava or Apple Health for greater integration.
Active Braking Pivot (ABP)
ABP lets the suspension act independently of braking, boosting traction and control under hard braking on rough ground.
Specifications
Technical Information
Frameset
| 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 RL, Solo Air, Motion Control damper, lockout, tapered steerer, 42 mm offset, Boost110, 15 mm Maxle Stealth, 130 mm travel |
| Max compatible fork travel | See service manual |
Wheels
| 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 | Array |
| Spokes | 14 g stainless steel, black |
| *Tyre | Array |
| 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 |
E-system
| Battery | Bosch PowerTube 600 Wh, smart system |
|---|---|
| Charger | Bosch standard 2A, 230V, smart system |
| Computers | Bosch Purion 200 |
| Engine | Bosch Performance Line CX, 20 mph / 32 km/h max assist (25 km/h max assist in EU and APAC) |
Drivetrain
| 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 |
Components
| Saddle | Bontrager Verse P3, steel rails |
|---|---|
| *Seatpost | Array |
| Handlebar | Bontrager Comp, alloy, 31.8 mm, 40mm rise, 780 mm width |
| Grips | Bontrager XR Trail 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 |
Accessories
| Mudguard | Trek 27.5" custom fender |
|---|
Weight
| Weight | M - 24.58 kg/54.19 lb (with TLR sealant, no tubes) |
|---|---|
| Weight limit | This bike has a maximum total weight limit (combined weight of bicycle, rider and cargo) of 136 kg (300 lb). |
Dimensions
Geometry
Geometry Data
| S-27.5" | M-29" | L-29" | XL-29" | ||
|---|---|---|---|---|---|
| A | Seattube | 38.0 | 40.0 | 42.0 | 45.0 |
| B | Angle Seattube | 71.1° | 71.3° | 71.2° | 72.4° |
| C | Length Headtube | 13.0 | 11.0 | 13.0 | 15.0 |
| D | Angle Head | 65.0° | 66.0° | 66.0° | 66.0° |
| E | Eff Toptube | 56.3 | 59.5 | 63.0 | 65.4 |
| F | BBHeight | 33.0 | 33.5 | 33.5 | 33.5 |
| G | BBDrop | 3.0 | 4.5 | 4.5 | 4.5 |
| H | Length Chainstay | 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 |
Measurements in centimetres unless otherwise stated. We recommend a test ride and fitting in store.
Fitting
Size Chart
| Size | Rider Height | Inseam |
|---|---|---|
| S | 155-165 | 74-78 |
| M | 165-176 | 79-83 |
| L | 177-188 | 84-89 |
| XL | 188-195 | 89-91 |
We always recommend trying the bike in store — book a free fitting appointment.
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Warranty & service
Why buy Trek polkupyörät from VM Sport?
We are an authorised dealer and service the bikes we sell in our own workshop in Pietarsaari. You get expert help with choosing, fitting and servicing — before and after the purchase.
- 01 Manufacturer's warranty on all products
- 02 Authorised dealer — warranty service in our own workshop
- 03 First service at half price for bikes bought from us
- 04 Fitting and test ride at our Pietarsaari store
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