Powerfly+ FS 4 Gen 4 - 2025

It's right for you if...

You're itching to explore and want a full-power, fully-capable e-MTB to take you there. You want the trail-smoothing benefits of a full-suspension mountain bike for rough roads and light singletrack, but don't see steep rock gardens or jump trails in your forecast.

The tech you get

An Alpha Platinum Aluminium frame with a Bosch Performance Line CX motor (85 Nm, 250 W), a 600 Wh PowerTube RIB 2.0 removable integrated battery and Purion 200 controller. 130 mm front and 120 mm rear suspension from a RockShox Recon Silver RL fork with Solo Air spring and Motion Control damper and a RockShox Deluxe Select shock. Tubeless-ready wheels with puncture-resistant 2.4˝ tyres, a 10-speed Shimano CUES drivetrain for clean shifts, a Bontrager Line dropper post and hydraulic disc brakes.

The final word

Explore the beyond with Powerfly FS+ 4. This capable and powerful e-MTB is ready to keep you soaring up the trail with a grin as big as you have on the downs. Its capable full-suspension set-up smooths rough tracks and boosts confidence while you venture to alpine yurts or just around town.

Why you'll love it

• The Powerfly FS+ gives you the powerful boost you crave on high alpine climbs, confident comfort on descents and a big battery for getting far out there
• 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
• Its RIB 2.0 removable integrated battery is easy to remove for travel and storage, and its virtually rattle-free while you ride
• You can customise the Powerfly for how and where you ride, with mounts for bags, lights and racks
• Want to ride even further? The Powerfly FS+ is compatible with Bosch PowerMore booster batteries, and you can even upgrade the 600 Wh battery for a bigger 800 Wh option to get far out there

SPECS:

FRAMESET

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

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:

- 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

E-SYSTEM

Battery: Bosch PowerTube 600 Wh, smart system

Charger:Bosch standard 2A, 230V, smart system

Computer: Bosch Purion 200

Motor: Bosch Performance Line CX, 20 mph (25 km/h in Europe)

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:

- 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: 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

WEIGHT

Weight limit: This bike has a maximum total weight limit (combined weight of bicycle, rider and cargo) of 136 kg (300 lb).

The manufacturer reserves 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. Due to supply chain issues, compatible parts may be substituted at any time without notice. The prices shown are the manufacturer's suggested retail prices.