Trek powerfly fs+ 4

$4,499.99
By Trek
SKU: 5329717 // Barcode: 197216109365
Powerfly FS+ 4 is a full-power full suspension electric mountain bike for taking on alpine adventures. It features 120mm of rear and 130mm of front trail-smoothing travel and a powerful Bosch Performance Line CX motor with a PowerMore compatible Removable Integrated Battery 2.0 (RIB 2.0) for getting way, way out there.
  • Powerfly FS+ gives you the powerful boost you crave on high alpine climbs, confident comfort on descents, and a big battery for getting way out there
  • Boschs Performance Line CX motor delivers plenty of torques for steep, punchy climbs, and is easy to control with the Purion 200 remote – plus you can customize it in the eBike Flow app
  • Its RIB 2.0 removable integrated battery is easy to remove for travel and storage, and virtually rattle-free while you ride
  • You can customize Powerfly for how and where you ride, with mounts for bags, lights, and racks
  • Wanna ride even farther? Powerfly FS+ is compatible with Bosch PowerMore booster batteries, and you can even upgrade the 600Wh battery for a bigger 800Wh option to get way out there

New RIB 2.0

Removable Integrated Battery (RIB 2.0) makes it easy to remove your battery for more convenient charging or traveling, and you dont have to worry about dropping it thanks to a secondary safety catch.

Extend your ride

Wanna take your ride even farther? Pair a 250Wh PowerMore range extender with your bike to chase your most epic adventures.

Light, quiet motor

Boschs Performance Line CX 85nm motor is lighter and quieter than ever, without wavering on natural-feeling support for crushing epic rides and the longest, steepest climbs.

Massive range for epic rides

Boschs new 800Wh battery gives you enormous range for chasing down your greatest adventures — or, you can swap to a 600Wh option for a lighter-weight ride with more nimble handling.

Customize your ride

Get more utility and sleek integration with mudguards and a rack designed specifically for Powerfly, so you can customize your setup for everyday needs or epic exploration.

Bosch eBike Flow app

The new eBike Flow app turns your ride into a personalized experience. Use it to customize your motors assist behavior, track your ride stats, and integrate your data with apps like Strava and Apple Health. Theres even handy features like navigation and service reminders.


Frame Alpha Platinum Aluminum, Removable Integrated Battery (RIB 2.0), tapered headtube, guided internal routing, Motor Armor, angle-adjust headset, Mino Link adjustable geometry, adjustable leverage rate, 34.9mm 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, 42mm offset, Boost110, 15mm Maxle Stealth, 130mm travel
Shock RockShox Deluxe Select R, 210x50mm
Tire Bontrager Gunnison Pro XR, Tubeless Ready, wire bead, 60 tpi, 27.5x2.40
Tire Part Bontrager TLR sealant, 6oz
Hub Front Shimano TC500 alloy, centerlock, 110x15mm thru axle
Hub Rear Shimano TC500 alloy, centerlock, 148x12mm thru axle
Rim Bontrager Line TLR 30, Tubeless Ready, 28-hole, Presta valve // Bontrager Line TLR 30, Tubeless Ready, 32-hole, Presta valve
Rim Strip Bontrager TLR
Skewer Rear Bontrager Switch thru axle, removable lever
Shifter Shimano U6000, 10 speed
Rear Derailleur Shimano CUES U6000 GS
Crank FSA Bosch CK-220, 36T ring, 165mm length
Cassette Shimano CUES LG300, LINKGLIDE, 11-48, 10 speed
Chain Shimano LG500, 9/10/11 speed
Chainring FSA, 36T, steel
Brake Tektro Gemini SL 4 piston hydraulic brake // Tektro Gemini SL 4 piston hydraulic brake
Brake Rotor Tektro, centerlock, 203mm
Pedal VP-536 nylon platform
Saddle Bontrager Verse P3, steel rails
Seatpost Bontrager Line Dropper, 100mm travel, MaxFlow, internal routing, 31.6mm, 310mm length
Seat Collar Bolt-on, 36.4mm
Handlebar Bontrager Comp, alloy, 31.8mm, 40mm rise, 780mm width
Stem Bontrager Comp, 31.8mm, Blendr compatible, 7 degree, 50mm length
Headset FSA IS-2, 1-1/8 top, 1.5 bottom
Grips Bontrager XR Trail Comp, nylon lock-on
Battery Bosch PowerTube 600Wh, smart system
Motor Bosch Performance Line CX, 20 mph / 32 km/h max assist (25 km/h max assist in EU and APAC)
Charger Bosch standard 2A, 110V, smart system

Geometry Chart

B B Drop 3
B B Height 33
Chainstay Length 45.8
Eff Seat Tube Angle 77.0°
Eff Top Tube 56.3
Frame Reach 42.5
Frame Size Letter S
Frame Size Number 15.5"
Frame Stack 59.7
Head Angle 65.0°
Head Tube Length 13
Offset 4.4
Seat Tube 38
Seat Tube Angle 71.1°
Standover 75.6
Trail 12.3
Wheelbase 120.1
Wheel Size 27.5"
B B Drop 4.5
B B Height 33.5
Chainstay Length 46.1
Eff Seat Tube Angle 77.0°
Eff Top Tube 59.5
Frame Reach 45
Frame Size Letter M
Frame Size Number 17.5"
Frame Stack 62.9
Head Angle 66.0°
Head Tube Length 11
Offset 4.4
Seat Tube 40
Seat Tube Angle 71.3°
Standover 78
Trail 12.5
Wheelbase 122.3
Wheel Size 29"
B B Drop 4.5
B B Height 33.5
Chainstay Length 46.1
Eff Seat Tube Angle 77.0°
Eff Top Tube 63
Frame Reach 47.5
Frame Size Letter L
Frame Size Number 19.5"
Frame Stack 64.7
Head Angle 66.0°
Head Tube Length 13
Offset 4.4
Seat Tube 42
Seat Tube Angle 71.2°
Standover 77.5
Trail 12.5
Wheelbase 125.7
Wheel Size 29"
B B Drop 4.5
B B Height 33.5
Chainstay Length 46.1
Eff Seat Tube Angle 77.0°
Eff Top Tube 65.4
Frame Reach 50
Frame Size Letter XL
Frame Size Number 21.5"
Frame Stack 66.6
Head Angle 66.0°
Head Tube Length 15
Offset 4.4
Seat Tube 45
Seat Tube Angle 72.4°
Standover 77.8
Trail 12.5
Wheelbase 129
Wheel Size 29"