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2017 Trek

Powerfly 8 FS Plus

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

$4,999
Weight50.7 lbs  
FrameAluminum
SuspensionFull, 130 / 130mm
ForkRockShox Yari RC
ShockRockShox Deluxe
Wheels27.5″ Aluminum
Drivetrain1 × 11
GroupsetXT
MotorBosch 250W 75Nm mid-drive
BatteryBosch 500Wh
BrakesShimano Deore Hydraulic Disc
SeatpostDropper
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Insights
Ride Feel

Based on frame geometry and build specs.

Terrain
easyextreme
Handling
nimblestable
Powerfly 8 FS Plus
Other Trail 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)

11 mph

Powerfly 8 FS Plus

26 mph

Similar Bikes

Highest gear

(descending)

Sizing
15.5"

5'0" – 5'7"

17.5"

5'5" – 5'11"

18.5"

5'9" – 6'3"

19.5"

5'9" – 6'3"

21.5"

6'1" – 6'6"

🐐 Estimated

Rider Fit Notes

None yet.

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Reviews

Summary

The Trek Powerfly is a highly capable trail e-MTB, praised for its powerful Bosch motor, adjustable geometry via Mino Link, and robust suspension system. It excels in climbing and offers a fun, stable ride across varied terrain, though its weight and battery life can be limiting factors.

Pros
  • Powerful Bosch Performance CX motor for efficient climbing

  • Adjustable geometry with Mino Link for versatile riding

  • Robust suspension system for smooth trail performance

  • Stable and confident handling on descents

  • Good range with 500Wh battery for longer rides

Cons
  • Heavy weight affects maneuverability and playfulness

  • Battery life may require careful management on long rides

  • Some models lack space for a water bottle

  • Motor can be noisy at high RPM

Key Quotes
Railing an uphill berm is pretty freaking fun.
Bicycling
The Trek’s geometry is inspired, the shock tune correct and the bike always feels planted.
Dirt Mountainbike logoDirt Mountainbike
This is an excellent electric mountain bike with one of the best drive systems currently available, my personal favorite, and it’s probably going to be easier to find in person and test ride than a lot of competitors.
Electric Bike Review logoElectric Bike Review

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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

Loam Wolf
Trek Launches the New Powerfly

Jul 2018 · Chili Dog

First Ride Trek Launches the New Powerfly The Next Evolution Words by Chili Dog | Photos by Margus Riga & Chili Dog Whether you’re aware of it or not, we are in a very special time period. Our sport rarely sees massive

Read Review

E-Mountainbike Magazine
Trek Powerfly 8 FS Review

May 2017 · Christoph Bayer

In June last year the American manufacturer Trek launched an updated version of the Trek Powerfly 8. What has this € 4,999 bike to offer?

Read Review

Electric Bike Review
Trek Powerfly 8 FS Plus Review - Prices, Specs, Videos, Photos

Apr 2017

Price: $4999.00 | Model Year: 2017 A full suspension trail bike from one of the

Observations
  • A full suspension trail bike from one of the "big three" brands in the US, it offers 130 mm travel with custom tuning for the added weight and power of the bike, excellent weight distribution

  • Quick-release wheels, removable battery, and removable display make the bike flexible and easy to transport or charge, integrated Micro-USB charging port on the display panel to top your phone or GPS

  • Innovative adjustable length seat stays, knock-block steering with failsafe rubber guard and longer axles showcase how Trek is pushing bike technology forward, sturdy skid plate and minimalist guide

  • A bit heavier than expected at ~50.1 lbs, no bottle cage bosses, the Bosch CX drive system produces a bit more noise but offers excellent torque, battery is not as hidden or integrated as some competing models

Read Review

Dirt Mountainbike
TREK POWERFLY LT

Apr 2017 · Sean White

The Trek Powerfly is a very well sorted package and was one of the first e-bikes to win us over.

Read Review

MTBR
Video: Trek Powerfly 8 FS review

Mar 2017 · Francis Cebedo

The Powerfly 8 is Trek's 130mm travel full suspension e-bike. Based off the Fuel EX-platform, this bike is fully compliant with e-bike regulations and performs well on the trail. - Mtbr.com

Read Review

Bicycling
First Ride: The Trek Powerfly E-Mountain Bike

Aug 2016 · Taylor Rojek

Trek's pedal-assist mountain bike is wildly popular in Europe—and it just made the leap to the US

Read Review

ebiketips
Trek Powerfly 9 FS Plus

Jul 2016

Verdict: Highly capable and solidly specced trail bike with good ride and range

Read Review

Geometry
Specs
Build
Frame

Alpha Platinum Aluminum, ABP, Boost148, EVO link, E2 tapered head tube, Mino Link, Knock Block steerer stop, internal derailleur & dropper post routing, 130mm travel

Fork

RockShox Yari RL, Solo Air, Motion Control damper, lockout, E2 tapered steerer, Boost110, G2 Geometry w/51mm offset, 130mm travel

Travel130mm

Spring TypeAir

Shock

RockShox Deluxe RL, tuned by Trek Suspension Lab, 205x50mm

Travel130mm

Headset

FSA Knock Block IS-2, E2, sealed alloy cartridge

Stem

Bontrager Rhythm Comp, Knock Block, 31.8mm, 0 degree

Handlebar

Bontrager alloy, 31.8mm, 5mm rise, 750 width

Saddle

Bontrager Evoke 2, chromoly rails

Seatpost

KS eThirty Integra, remote lever, 2-bolt head, 31.6mm, zero offset, internal routing

TypeDropper

Pedals

Wellgo nylon platform

Grips

Bontrager inForm Evoke RL, lock-on, ergonomic

Groupset
Rear Derailleur

Shimano Deore XT, Shadow Plus

Crank

Miranda Delta, 15T

Shifters

Shimano Deore XT, 11 speed

Cassette

Shimano M7000 SLX, 11-42, 11 speed

Brakes

Shimano M615 Deore hydraulic disc, 203mm front/180mm rear rotors

TypeShimano Deore Hydraulic Disc

Wheels
Rims

SUNringlé Duroc 40 SL 32-hole (tubeless strips and valves included)

Front Hub

Bontrager sealed bearing, alloy axle, Boost110

Rear Hub

Bontrager sealed bearing alloy axle, Boost148

Tires

Bontrager Chupacabra, Tubeless Ready, Inner Strength sidewalls, aramid bead, 27.5x2.80"

Electric Components
Motor

Bosch Performance CX, 250 watt, 75Nm

Battery

Bosch Powerpack Performance 500 downtube

Remote

Bosch Intuvia Performance

Rider Notes
Riders Also Viewed

First added April 12

Last updated July 21

Not listed for 3,234 days