2021 Trek

Powerfly FS 9 Equipped

A 27.5″ / 29″ aluminum frame full suspension crosscountry e-bike with high-end components.
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Manufacturer Price

$5,999
Weight60.0 lbs  
FrameAluminum
SuspensionFull, 100 / 120mm
ForkSuntour Zeron
ShockRockShox SIDLuxe Select+
Wheels27.5″ / 29″ Aluminum
Drivetrain1 × 12
GroupsetXT, e*thirteen
MotorBosch 250W 85Nm mid-drive
BatteryBosch 625Wh
BrakesHydraulic Disc
SeatpostDropper
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Insights
Ride Feel

Based on frame geometry and build specs.

Terrain
easyextreme
Handling
nimblestable
Powerfly FS 9 Equipped
Other Crosscountry bikes
Gearing

A bike with lower gearing will be easier to ride up steep hills, while a higher top end means it will pedal faster down hills.

Lowest gear

(climbing)

29 mph

Powerfly FS 9 Equipped

27 mph

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Highest gear

(descending)

Spec Level

Based on build material and quality level of the frame, fork, wheelset, groupset, suspension system, and more.

Compare the full Powerfly model range

View Comparison
Sizing
14.5"

4'5" – 5'2"

15.5"

5'0" – 5'6"

17.5"

5'3" – 5'10"

19.5"

5'8" – 6'3"

21.5"

6'1" – 6'6"

Rider Fit Notes

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Reviews
Downtown
Trek Powerfly FS 9 Equipped

Sep 2022 · Mike Hunger

We have tested the Trek Powerfly FS 9 Equipped with Bosch Performance Line CX motor and 625 Wh battery for you.

Highs
  • Wide range of applications

  • Sporty and stylish look

  • Intuitive handling

  • Bosch SmartphoneHub ensures good connectivity

Lows
  • None

Read Review

BikeRadar
Trek Powerfly FS9 Equipped review

Feb 2022 · Russell Burton

A well-specified, comfortable and versatile ebike, but at a serious price

Highs
  • Comfort

  • Range

  • Stability

Lows
  • Expensive, especially if you’re considering leaving it outside the local shop

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E-Mountainbike Magazine
Trek Powerfly FS 9 Equipped in review – A new generation of E-trekking bike

Sep 2021 · Rudolf Fischer

In our E-trekking bike group test, Trek enter the race with the Powerfly FS 9 Equipped with its Bosch Performance CX motor and many sporty features.

Highs
  • Wide range of applications

  • Predictable handling

  • Spec includes high-quality mountain bike components

  • Many connectivity features through Bosch SmartphoneHub

Lows
  • Untidy cable routing of the cockpitt

Read Review

Electric Bike Review
Trek Powerfly FS 9 Equipped Review

Oct 2020

Price: $5999.00 | Model Year: 2021 | A premium

Observations
  • A premium "do anything" full suspension electric bike that's equipped to handle pavement, trails, light mountain terrain, rain, shine, day, or night conditions. Available in five frame sizes for optimal fit, the XS and S come with 27.5" wheels and the M, L, and XL come with 29" wheels. Sold through one of North America's largest network of dealers. Trek and Bosch provide excellent support and warranty.

  • Custom made extra-wide plastic fenders are durable and quiet, very capable in off-road conditions. A sleek and sturdy rear rack provides 25kg (55lbs) of cargo capacity with pannier hangers on both sides and a removable top platform for trunk bags. Puncture resistant tires also feature unique black reflective stripes that combine safety with aesthetics.

  • Downtube-integrated battery pack and mid-drive motor keep weight low and center. Trek designed a "RIB" battery casing includes a handle for safe removal and transport. The battery doesn't rattle, and it can be charged on or off the bike with the fast 4 amp charger. Peformance Line CX motor is the most powerful from Bosch, but lightweight with a magnesium casing.

  • Highly adjustable air suspension front and rear with 120mm and 100mm travel respectively. Boost hub spacing and thru-axles increase wheel strength. Extra large 203mm hydraulic disc brakes with heat sinks and alloy cores deliver incredible stopping power. The biggest trade-offs here include the high price, smartphone display (that some may not like), louder motor operation, and increased weight (due to the high capacity battery and accessories).

Read Review

Bikerumor
All-new Trek Powerfly full suspension e-MTBs hit the trails...and the street?

Sep 2020

The 2021 Trek Powerfly full suspension e-MTBs blend European sensibility with modern trail capability for a unique e-mountain bike option.

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Loam Wolf
Review: Trek Powerfly LT 7 Plus

Jan 2019

If I had to think of one common theme that continually came up during our time with the Powerfly, that would be it—too damn fun. Over the months we’ve had this bike, we’ve done it all and it does it all with ease.

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MBR
Trek Powerfly 9 LT (2019) first ride review - MBR

Oct 2018 · Alan Muldoon

Up hill or down, ebikes take an absolute beating, so the new Trek Powerfly 9 has a beefed up the parts package to handle the additional abuse.

Highs
  • Suspension, brakes and tyres are all on point. New battery layout is neat and easy to use.

Lows
  • Could have more generous reach measurements and shorter stems on all sizes.

Read Review

Flow Mountain Bike
Flow's First Bite: Trek Powerfly LT 9 Plus

Oct 2018

Trek’s new 2019 Powerfly gives no mixed messages about its intentions. It is chunky, long, robust and built like a tank. With 160/150mm of travel, 40mm wide rims with 2.8″ tyres, e-bike specific FOX 36 the spec is undoubtedly up for a thrashing, and the chassis also. The newly integrated battery does wonders in making a …

Highs
  • Built tough.

  • Bosch E-MTB setting feels natural.

  • Fearless climber.

Lows
  • Length detracts from agility.

  • Heavy to move around.

Read Review

Geometry
99 Spokes on YouTube99 Spokes on YouTube
Specs
Build
Frame

Alpha Platinum Aluminium, Removable Integrated Battery (RIB), tapered head tube, internal routing, Motor Armour, magnesium rocker link, rack and mudguard mount, ABP, Boost148, 100 mm travel

Tire Clearance2.4"

ColorsLithium Grey / Trek Black; Crystal White / Metallic Gunmetal

Fork

SR Suntour Zeron 35, air spring, LO R damper, hydraulic lockout, tapered steerer, 44 mm offset, Boost110, 15 mm bolt-on thru axle, 120 mm travel

Travel120mm

Spring TypeAir

Shock

RockShox SID Lux Select+, 190 x 45 mm

Travel100mm

Spring TypeAir

Stem

Size: XS, S, Bontrager Elite, 31.8 mm, Blendr light mount, 7-degree rise, 60 mm length; Size: M, L, XL, Bontrager Elite, 31.8 mm, Blendr light mount, 7-degree rise, 70 mm length

Handlebar

Bontrager alloy, 31.8 mm, 15 mm rise, 750 mm width

Saddle

Bontrager Commuter Comp

Seatpost

Size: XS, S, M, Bontrager Line Dropper, 100 mm travel, internal routing, 31.6 mm, 345 mm length; Size: L, XL, Bontrager Line Dropper, 150mm travel, internal routing, 31.6 mm, 440mm length

TypeDropper

Pedals

VP-536 nylon platform

Grips

Bontrager XR Endurance Comp

Groupset
Rear Derailleur

Shimano XT M8100, long cage

Crank

E*thirteen E*spec Plus, 34T, 165 mm length

Shifters

Shimano XT M8100, 12-speed

Cassette

Shimano XT M8100, 10-51, 12-speed

Chain

Shimano XT M8100, 12-speed

Brakes

Shimano XT M8120 4-piston hydraulic disc

TypeHydraulic Disc

Wheels
Rims

Bontrager Line Comp 30, Tubeless Ready, 6-bolt, Boost110, 15mm thru axle

Spokes

Size: XS, S, DT Swiss Champion, J-Bend, Black; Size: M, L, XL, 14g stainless

Front Hub

Bontrager alloy, sealed bearing, alloy axle, 6-bolt, Boost110, 15 mm thru axle

Rear Hub

Bontrager alloy, sealed bearing, alloy axle, 6-bolt, Shimano MicroSpline freehub, Boost148, 12 mm thru axle

Tires

Size: XS, S, Bontrager LT4 Expert, reflective strip, wire bead, 60 tpi, 27.5x2.40"; Size: M, L, XL, Bontrager LT4 Expert, reflective strip, wire bead, 60 tpi, 29x2.40"

Disc Rotors

Shimano RT76, 6-bolt, 203 mm

Electric Components
Motor

Bosch Performance CX, magnesium motor body, 250 watt, 85 Nm, 25 km/h (15.5 mph) max assist, 32 km/h for New Zealand

Battery

Bosch PowerTube 625

Recycling Program♻️ Call2Recycle

Charger

Bosch standard 4A, 220–240V

Accessories
Lights

Size: XS, S, M, L, XL, Supernova E3 Mini-2 rear light, LED; Size: XS, S, M, L, XL, Supernova front light

Fenders

Size: XS, S, Trek Powerfly 27.5'' custom fender; Size: XS, S, M, L, XL, Trek Powerfly FS custom mudguard; Size: M, L, XL, Trek Powerfly 29'' custom fender

Racks

MIK Compatible alloy rear rack

Rider Notes
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Last updated October 1
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