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Trek Powerfly FS 4 Gen 2 Facts: 171 Specifications & 88 Highlights

Need the real scoop on the Trek Powerfly FS 4 Gen 2? See why drivers prefer it after reviewing all 171 specs & performance — especially the general information, dimensions, motor & performance & battery & charging.

Trek Powerfly FS 4 Gen 2

Highlights 88

No extras. Just what matters.
73 Points

Why is Trek Powerfly FS 4 Gen 2 better than other electric bikes ?

General Information

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Dimensions

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Motor & Performance

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Battery & Charging

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Drivetrain & Transmission

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Brakes & Safety

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Suspension & Comfort

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Wheels & Tires

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Electronics & Display

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Connectivity & Smart Features

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Accessories & Convenience

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Warranty & Support

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Safety & Protection

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Environmental Resistance

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Ergonomics & Adjustability

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Quick Take

The essentials that matter—nothing extra

A fast snapshot of the Trek Powerfly FS 4 Gen 2, covering its standout specification and what you can expect right out of the box.

Trek Powerfly FS 4 Gen 2
Trek Powerfly FS 4 Gen 2

Trek Powerfly FS 4 Gen 2 is an electric bike that is designed for adults who use bikes for trails and roads. This bike has a powerful motor of 250 watts that can reach a top speed of 20 miles per hour. This frame bike is made from aluminum, which is strong yet lightweight, and also does not rust easily.

Specifications & Facts 171

Specs measured. Drama avoided.

We put the Trek Powerfly FS 4 Gen 2 electric bike to the test. Here’s everything: specs, comparisons with other electric bikes, pros, cons, and vote-based reactions from real users.

General Information 14

Trek Powerfly FS 4 Gen 2 Rider Height Range

What is the recommended rider height range?

57 Trek Powerfly FS 4 Gen 2 0 Votes 4'9" - 6'5"

68 Electric Bikes in this range 5'4" - 6'4"

Trek Powerfly FS 4 Gen 2
Trek Powerfly FS 4 Gen 2

Fits a wide range: 4'9"–6'5" is approximately 145 cm – 196 cm, so most adult riders will find a suitable frame size.

Recommended rider height span for proper fit.

Trek Powerfly FS 4 Gen 2 Rider Weight Capacity

What is the rider weight capacity?

300 lbs 0Votes
Trek Powerfly FS 4 Gen 2
310.63 lbs (Average)

Trek Powerfly FS 4 Gen 2
Trek Powerfly FS 4 Gen 2

Rated to 300 lbs — that's about 136 kg, which includes rider + gear; if you frequently carry heavy loads, allow margin for safety and suspension tuning.

Max supported rider weight for safety/warranty.

Trek Powerfly FS 4 Gen 2 Bike Weight

What is the bike’s weight?

54.75 lbs 0Votes
Trek Powerfly FS 4 Gen 2
67.61 lbs (Average)

Trek Powerfly FS 4 Gen 2
Trek Powerfly FS 4 Gen 2

Weighs 54.75 lbs, roughly 24.85 kg — heavy compared with non-electric mountain bikes but typical for a mid-drive e-MTB with full suspension.

total weight affects portability and handling.

Trek Powerfly FS 4 Gen 2 Intended Use

What is the intended use?

45 Trek Powerfly FS 4 Gen 2 0 Votes Urban/Commuter, Mountain, Adventure, Off-road

45 Electric Bikes in this range Urban/Commuter

Primary riding scenarios the bike is optimized for.

Trek Powerfly FS 4 Gen 2 Color Options

What color options are offered?

85 Trek Powerfly FS 4 Gen 2 0 Votes Black, Grey

35 Electric Bikes in this range Black

Available finishes for aesthetic preference.

Trek Powerfly FS 4 Gen 2 Rider Age Recommendation

What is the rider's age recommendation?

62 Trek Powerfly FS 4 Gen 2 0 Votes Adult (+16)

64 Electric Bikes in this range Adult (+16)

Rider's age recommendation stated by the bike's manufacturer.

Dimensions 6

Trek Powerfly FS 4 Gen 2 Crank Arm Length

What is the crank arm length?

6.49 inch 0Votes
Trek Powerfly FS 4 Gen 2
6.66 inch (Average)

Length of crank arms; influences pedaling leverage.

Trek Powerfly FS 4 Gen 2 Width

What is the bike’s width?

29 inch 0Votes
Trek Powerfly FS 4 Gen 2
28.26 inch (Average)

Overall bike width when ready to ride.

Trek Powerfly FS 4 Gen 2 Height

What is the bike’s height?

44.5 inch 0Votes
Trek Powerfly FS 4 Gen 2
41.31 inch (Average)

Overall height from ground to highest point.

Trek Powerfly FS 4 Gen 2 Handlebar Width

What is the handlebar width?

31.8 inch 0Votes
Trek Powerfly FS 4 Gen 2
27.7 inch (Average)

End-to-end handlebar span affects steering and comfort.

Trek Powerfly FS 4 Gen 2 Wheelbase Length

What is the wheelbase length?

49.4 inch 0Votes
Trek Powerfly FS 4 Gen 2
56.07 inch (Average)

Distance between front and rear wheel axles.

Trek Powerfly FS 4 Gen 2 Standover Height

What is the standover height?

28.1 inch 0Votes
Trek Powerfly FS 4 Gen 2
34.67 inch (Average)

Height of the top tube from ground; affects mount ease.

Motor & Performance 16

Trek Powerfly FS 4 Gen 2 Pedal Assist Levels

How many pedal assist levels are available?

22 Trek Powerfly FS 4 Gen 2 0 Votes 4 Levels

28 Electric Bikes in this range 5 Levels

Trek Powerfly FS 4 Gen 2
Trek Powerfly FS 4 Gen 2

Four assist levels (usually Eco/Walk/Trail/Boost style) give control over power and range tradeoffs — useful for tuning battery life on long rides.

Number of selectable pedal-assist modes.

Trek Powerfly FS 4 Gen 2 Motor Type

What is the motor type?

82 Trek Powerfly FS 4 Gen 2 0 Votes Mid-Drive

77 Electric Bikes in this range Hub

Trek Powerfly FS 4 Gen 2
Trek Powerfly FS 4 Gen 2

Mid-drive motors centralize mass and improve handling versus hub motors; they also leverage the bike’s gears for better hill performance.

Defines drive system layout and efficiency.

Trek Powerfly FS 4 Gen 2 Motor Power

What is the motor power?

250 Watt 0Votes
Trek Powerfly FS 4 Gen 2
879.98 Watt (Average)

Trek Powerfly FS 4 Gen 2
Trek Powerfly FS 4 Gen 2

250 Watt continuous equals 0.25 kW, a common EU/US legal limit for Class 1 e-bikes — enough for assisted trail riding without overpowering the chassis.

Continuous rated motor output.

Trek Powerfly FS 4 Gen 2 Torque

What is the motor torque?

85 Nm 0Votes
Trek Powerfly FS 4 Gen 2
93.53 Nm (Average)

Trek Powerfly FS 4 Gen 2
Trek Powerfly FS 4 Gen 2

85 Nm torque is approximately 62.7 lb-ft, giving strong low-end push for climbs and technical sections on an e-MTB.

Torque output for hill climbing and acceleration.

Trek Powerfly FS 4 Gen 2 Top Speed

What is the assisted top speed?

20 mph 0Votes
Trek Powerfly FS 4 Gen 2
24.13 mph (Average)

Trek Powerfly FS 4 Gen 2
Trek Powerfly FS 4 Gen 2

20 mph equals about 32 km/h, the typical Class 1 assisted top speed — good balance of speed and legal compliance in many regions.

Maximum pedal-assist or throttle-assisted speed.

Trek Powerfly FS 4 Gen 2 Motor Position

Where is the motor positioned?

22 Trek Powerfly FS 4 Gen 2 0 Votes Mid

29 Electric Bikes in this range Rear

Placement affects handling and traction.

Battery & Charging 15

Trek Powerfly FS 4 Gen 2 Charging Time

What is the charging time?

4.5 hr 0Votes
Trek Powerfly FS 4 Gen 2
4.81 hr (Average)

Trek Powerfly FS 4 Gen 2
Trek Powerfly FS 4 Gen 2

4.5 hr equals ~270 minutes — with the supplied 144 W charger this timing is typical for a full charge from low.

Time to reach full charge.

Trek Powerfly FS 4 Gen 2 Battery Type

What is the battery type?

42 Trek Powerfly FS 4 Gen 2 0 Votes Lithium-ion

46 Electric Bikes in this range Lithium-ion

Trek Powerfly FS 4 Gen 2
Trek Powerfly FS 4 Gen 2

Lithium-ion chemistry is standard: high energy density and relatively light; follow manufacturer charging/storage guidelines to maximize life.

Defines chemistry of the battery pack.

Trek Powerfly FS 4 Gen 2 Battery Capacity

What is the battery capacity?

625 Wh 0Votes
Trek Powerfly FS 4 Gen 2
779.98 Wh (Average)

Trek Powerfly FS 4 Gen 2
Trek Powerfly FS 4 Gen 2

625 Wh = 0.625 kWh. At 36 V that’s about ~17.4 Ah (625 ÷ 36 ≈ 17.36 Ah), a common mid-range pack that supports moderate to long rides depending on assist level.

total energy storage of the battery.

Trek Powerfly FS 4 Gen 2 Voltage

What is the battery voltage?

36 Volt 0Votes
Trek Powerfly FS 4 Gen 2
42.51 Volt (Average)

Trek Powerfly FS 4 Gen 2
Trek Powerfly FS 4 Gen 2

36 V is a common e-bike voltage — balances power and battery life, and works with widely available chargers and motor controllers.

Nominal electrical output of the pack.

Trek Powerfly FS 4 Gen 2 Removable Battery

Is the battery removable?

Yes 0Votes Trek Powerfly FS 4 Gen 2

Yes Electric Bikes in this range

Trek Powerfly FS 4 Gen 2
Trek Powerfly FS 4 Gen 2

Removable pack lets you charge indoors and swap batteries for extended range; convenient for urban users with limited storage.

Can the battery be detached for charging?

Trek Powerfly FS 4 Gen 2 Fast Charging Support

Does it support fast charging?

Yes 0Votes Trek Powerfly FS 4 Gen 2

Yes Electric Bikes in this range

Trek Powerfly FS 4 Gen 2
Trek Powerfly FS 4 Gen 2

Fast charge support can reduce downtime, but frequent fast charging may slightly reduce long-term cycle life compared with slow charging.

Enables accelerated charging.

Drivetrain & Transmission 11

Trek Powerfly FS 4 Gen 2 Pedal Material

What is the pedal material?

85 Trek Powerfly FS 4 Gen 2 0 Votes Plastic

33 Electric Bikes in this range Aluminum

Material affects durability and weight.

Trek Powerfly FS 4 Gen 2 Freewheel/Cassette Type

What is the freewheel/cassette type?

88 Trek Powerfly FS 4 Gen 2 0 Votes Shimano Deore M4100

34 Electric Bikes in this range Freewheel

Identifies style/size for drivetrain compatibility.

Trek Powerfly FS 4 Gen 2 Gear Type

What is the gear type?

85 Trek Powerfly FS 4 Gen 2 0 Votes Multi-Speed

36 Electric Bikes in this range Multi-Speed

Defines whether the drivetrain has one or multiple gears.

Trek Powerfly FS 4 Gen 2 Gear Range

How many gears does it have?

85 Trek Powerfly FS 4 Gen 2 0 Votes 11-46

34 Electric Bikes in this range 7-Speed

Number of selectable gears available.

Trek Powerfly FS 4 Gen 2 Shifter Type

What type of shifter is used?

88 Trek Powerfly FS 4 Gen 2 0 Votes Trigger

36 Electric Bikes in this range Trigger

Input style for changing gears.

Trek Powerfly FS 4 Gen 2 Derailleur Brand/Model

What is the derailleur brand/model?

85 Trek Powerfly FS 4 Gen 2 0 Votes Shimano Deore M4100

36 Electric Bikes in this range Shimano

Specific derailleur spec for maintenance/compatibility.

Brakes & Safety 12

Trek Powerfly FS 4 Gen 2 Brake Rotor Size

What is the brake rotor size?

7.99 inch 0Votes
Trek Powerfly FS 4 Gen 2
7.29 inch (Average)

Trek Powerfly FS 4 Gen 2
Trek Powerfly FS 4 Gen 2

7.99 in ≈ 203 mm rotor — a common size for mountain bikes that balances heat dissipation and compatibility with calipers.

Diameter of brake rotors for disc systems.

Trek Powerfly FS 4 Gen 2 Brake Type

What is the brake type?

90 Trek Powerfly FS 4 Gen 2 0 Votes Disc

37 Electric Bikes in this range Disc

Trek Powerfly FS 4 Gen 2
Trek Powerfly FS 4 Gen 2

Disc brakes offer strong, consistent stopping power in wet and muddy conditions compared with rim brakes.

Main brake technology used.

Trek Powerfly FS 4 Gen 2 Brake Actuation

What is the brake actuation?

85 Trek Powerfly FS 4 Gen 2 0 Votes Hydraulic

35 Electric Bikes in this range Hydraulic

Trek Powerfly FS 4 Gen 2
Trek Powerfly FS 4 Gen 2

Hydraulic actuation provides better modulation and less maintenance than mechanical discs — expect firmer, more predictable braking feel.

Method of brake force transfer.

Trek Powerfly FS 4 Gen 2 ABS (Anti-lock Braking System)

Does it have ABS?

No 0Votes Trek Powerfly FS 4 Gen 2

Yes Electric Bikes in this range

Prevents wheel lockup during braking.

Trek Powerfly FS 4 Gen 2 Parking Brake

Does it have a parking brake?

No 0Votes Trek Powerfly FS 4 Gen 2

Yes Electric Bikes in this range

Secures bike when stationary.

Trek Powerfly FS 4 Gen 2 Headlight

Does it have a headlight?

Yes 0Votes Trek Powerfly FS 4 Gen 2

Yes Electric Bikes in this range

Front light for visibility.

Suspension & Comfort 10

Trek Powerfly FS 4 Gen 2 Suspension Travel (Front)

What is the front suspension travel?

4.72 inch 0Votes
Trek Powerfly FS 4 Gen 2
5.67 inch (Average)

Trek Powerfly FS 4 Gen 2
Trek Powerfly FS 4 Gen 2

4.72 in ≈ 12.0 cm — mid-travel fork suitable for trail riding and daily bumps without the weight/complexity of long-travel setups.

Maximum fork compression distance.

Trek Powerfly FS 4 Gen 2 Suspension Travel (Rear)

What is the rear suspension travel?

3.93 inch 0Votes
Trek Powerfly FS 4 Gen 2
5.45 inch (Average)

Trek Powerfly FS 4 Gen 2
Trek Powerfly FS 4 Gen 2

3.93 in ≈ 10.0 cm rear travel — tuned for efficient pedaling and controlled trail performance on mixed terrain.

Maximum rear shock compression distance.

Trek Powerfly FS 4 Gen 2 Suspension Lockout

Does it have suspension lockout?

Yes 0Votes Trek Powerfly FS 4 Gen 2

Yes Electric Bikes in this range

Trek Powerfly FS 4 Gen 2
Trek Powerfly FS 4 Gen 2

Lockout helps on paved climbs or long flats to improve pedaling efficiency and range when full suspension motion isn’t needed.

Allows suspension to be locked rigid for efficiency.

Trek Powerfly FS 4 Gen 2 Front Suspension Type

What is the front suspension type?

85 Trek Powerfly FS 4 Gen 2 0 Votes Air

34 Electric Bikes in this range Fork

Type of front fork or rigid setup.

Trek Powerfly FS 4 Gen 2 Rear Suspension Type

What is the rear suspension type?

85 Trek Powerfly FS 4 Gen 2 0 Votes Shock Absorber

35 Electric Bikes in this range None

Defines rear shock or rigid frame.

Trek Powerfly FS 4 Gen 2 Saddle Type

What is the saddle type?

85 Trek Powerfly FS 4 Gen 2 0 Votes Comfort

34 Electric Bikes in this range Comfort

Style of saddle affecting ride posture.

Wheels & Tires 11

Trek Powerfly FS 4 Gen 2 Wheel Size

What is the wheel size?

29 inch 0Votes
Trek Powerfly FS 4 Gen 2
31.38 inch (Average)

Trek Powerfly FS 4 Gen 2
Trek Powerfly FS 4 Gen 2

29 in wheel ≈ 73.66 cm diameter — rolls over obstacles more easily and provides stable tracking at speed.

Diameter of the wheels.

Trek Powerfly FS 4 Gen 2 Tire Width

What is the tire width?

2.35 inch 0Votes
Trek Powerfly FS 4 Gen 2
2.95 inch (Average)

Trek Powerfly FS 4 Gen 2
Trek Powerfly FS 4 Gen 2

2.35 in ≈ 59.7 mm — a common off-road width that balances traction and rolling resistance for varied terrain.

Cross-sectional width of the tire.

Trek Powerfly FS 4 Gen 2 Tire Type

What is the tire type?

90 Trek Powerfly FS 4 Gen 2 0 Votes Tubeless

35 Electric Bikes in this range Pneumatic

Trek Powerfly FS 4 Gen 2
Trek Powerfly FS 4 Gen 2

Tubeless setup reduces pinch flats and allows lower pressures for better traction — good for trail confidence and puncture resistance.

General construction of tires.

Trek Powerfly FS 4 Gen 2 Rim Material

What is the rim material?

85 Trek Powerfly FS 4 Gen 2 0 Votes Aluminum

35 Electric Bikes in this range Aluminum

Trek Powerfly FS 4 Gen 2
Trek Powerfly FS 4 Gen 2

Aluminum rims are durable, repairable, and cost-effective — a practical choice for trail use where impacts occur.

Main material used for rims.

Trek Powerfly FS 4 Gen 2 Tire Pressure (Recommended Max)

What is the maximum recommended tire pressure?

50 psi 0Votes
Trek Powerfly FS 4 Gen 2
47.13 psi (Average)

Trek Powerfly FS 4 Gen 2
Trek Powerfly FS 4 Gen 2

50 psi ≈ 345 kPa (≈ 3.45 bar); for off-road you’ll usually run lower than the max to improve traction — max is a safe upper limit for pavement.

Maximum manufacturer-recommended PSI.

Trek Powerfly FS 4 Gen 2 Rim Width

What is the rim width?

1.37 inch 0Votes
Trek Powerfly FS 4 Gen 2
3.08 inch (Average)

Internal rim width; affects tire fit.

Electronics & Display 13

Trek Powerfly FS 4 Gen 2 Display Type

What is the display type?

85 Trek Powerfly FS 4 Gen 2 0 Votes LCD

35 Electric Bikes in this range LCD

Trek Powerfly FS 4 Gen 2
Trek Powerfly FS 4 Gen 2

LCD displays are readable in most light conditions and are energy efficient; simpler than color TFTs but very reliable.

Kind of screen technology used.

Trek Powerfly FS 4 Gen 2 Display Size

What is the display size?

2 inch 0Votes
Trek Powerfly FS 4 Gen 2
2.5 inch (Average)

Trek Powerfly FS 4 Gen 2
Trek Powerfly FS 4 Gen 2

2 in ≈ 5.08 cm diagonal — compact but readable for basic speed, battery, and trip info; not a full navigation screen.

Diagonal measurement of display.

Trek Powerfly FS 4 Gen 2 Display Backlight

Does it have a display backlight?

Yes 0Votes Trek Powerfly FS 4 Gen 2

Yes Electric Bikes in this range

Trek Powerfly FS 4 Gen 2
Trek Powerfly FS 4 Gen 2

Backlight improves visibility in low light — handy for early starts or dusk rides.

Allows visibility in low light.

Trek Powerfly FS 4 Gen 2 Display Location

Where is the display located?

85 Trek Powerfly FS 4 Gen 2 0 Votes Center

35 Electric Bikes in this range Center

Position of the display unit.

Trek Powerfly FS 4 Gen 2 Display Removable

Is the display removable?

No 0Votes Trek Powerfly FS 4 Gen 2

Yes Electric Bikes in this range

Screen can be detached for security.

Trek Powerfly FS 4 Gen 2 Speedometer

Does it have a speedometer?

Yes 0Votes Trek Powerfly FS 4 Gen 2

Yes Electric Bikes in this range

Indicates current riding speed.

Connectivity & Smart Features 10

Trek Powerfly FS 4 Gen 2 Ride Data Logging

Does it log ride data?

Yes 0Votes Trek Powerfly FS 4 Gen 2

Yes Electric Bikes in this range

Trek Powerfly FS 4 Gen 2
Trek Powerfly FS 4 Gen 2

Onboard logging is useful for tracking rides, diagnosing issues, and optimizing assist modes for better range management over time.

Tracks ride history and stats digitally.

Trek Powerfly FS 4 Gen 2 Anti-Theft Alarm/Tracking

Does it have anti-theft alarm/tracking?

No 0Votes Trek Powerfly FS 4 Gen 2

Yes Electric Bikes in this range

Trek Powerfly FS 4 Gen 2
Trek Powerfly FS 4 Gen 2

No integrated tracking — consider an aftermarket GPS tracker or a strong lock for high-risk parking spots.

Built-in theft deterrent or tracker.

Trek Powerfly FS 4 Gen 2 Bluetooth Connectivity

Does it have Bluetooth connectivity?

Yes 0Votes Trek Powerfly FS 4 Gen 2

Yes Electric Bikes in this range

Enables pairing with smartphones and accessories.

Trek Powerfly FS 4 Gen 2 Wi-Fi Connectivity

Does it have Wi-Fi connectivity?

No 0Votes Trek Powerfly FS 4 Gen 2

Yes Electric Bikes in this range

Allows wireless updates and app features.

Trek Powerfly FS 4 Gen 2 ANT+/Fitness Sensor Support

Does it support ANT+ fitness sensors?

No 0Votes Trek Powerfly FS 4 Gen 2

Yes Electric Bikes in this range

Compatible with fitness trackers and sensors.

Trek Powerfly FS 4 Gen 2 Smartphone Mount

Does it include a smartphone mount?

No 0Votes Trek Powerfly FS 4 Gen 2

Yes Electric Bikes in this range

Built-in or included phone holder.

Accessories & Convenience 12

Trek Powerfly FS 4 Gen 2 Kickstand

Is a kickstand included?

Yes 0Votes Trek Powerfly FS 4 Gen 2

Yes Electric Bikes in this range

Indicates whether a kickstand comes standard.

Trek Powerfly FS 4 Gen 2 Kickstand Position

Where is the kickstand positioned?

80 Trek Powerfly FS 4 Gen 2 0 Votes Side

34 Electric Bikes in this range Rear

Location of the kickstand mount.

Trek Powerfly FS 4 Gen 2 Fenders

Are fenders included?

Yes 0Votes Trek Powerfly FS 4 Gen 2

Yes Electric Bikes in this range

Protects rider from splashes and debris.

Trek Powerfly FS 4 Gen 2 Rear Rack

Is a rear rack included?

Yes 0Votes Trek Powerfly FS 4 Gen 2

Yes Electric Bikes in this range

Indicates if bike comes with a cargo rack.

Trek Powerfly FS 4 Gen 2 Basket Compatibility

Is it basket compatible?

No 0Votes Trek Powerfly FS 4 Gen 2

Yes Electric Bikes in this range

Supports front or rear basket attachment.

Trek Powerfly FS 4 Gen 2 Child Seat Compatibility

Is it child seat compatible?

No 0Votes Trek Powerfly FS 4 Gen 2

Yes Electric Bikes in this range

Allows mounting a child seat safely.

Warranty & Support 8

Trek Powerfly FS 4 Gen 2 Warranty Length (Frame)

What is the frame warranty length?

5 years 0Votes
Trek Powerfly FS 4 Gen 2
3.54 years (Average)

Coverage period for the bike frame.

Trek Powerfly FS 4 Gen 2 Warranty Length (Motor)

What is the motor warranty length?

5 years 0Votes
Trek Powerfly FS 4 Gen 2
1.88 years (Average)

Warranty coverage for the motor.

Trek Powerfly FS 4 Gen 2 Warranty Length (Battery)

What is the battery warranty length?

2 years 0Votes
Trek Powerfly FS 4 Gen 2
1.79 years (Average)

Duration of coverage for the battery.

Trek Powerfly FS 4 Gen 2 Warranty Length (Electronics)

What is the electronics warranty length?

2 years 0Votes
Trek Powerfly FS 4 Gen 2
1.75 years (Average)

Coverage for onboard electronics/display.

Trek Powerfly FS 4 Gen 2 Extended Warranty Availability

Is extended warranty available?

No 0Votes Trek Powerfly FS 4 Gen 2

Yes Electric Bikes in this range

Option to purchase longer coverage.

Trek Powerfly FS 4 Gen 2 Spare Parts Availability

Are spare parts available?

Yes 0Votes Trek Powerfly FS 4 Gen 2

Yes Electric Bikes in this range

Indicates whether spare parts are offered.

Safety & Protection 12

Trek Powerfly FS 4 Gen 2 Overload Protection

Does it include overload protection?

Yes 0Votes Trek Powerfly FS 4 Gen 2

Yes Electric Bikes in this range

Prevents damage from excessive electrical draw.

Trek Powerfly FS 4 Gen 2 Safety Lock Switch

Does it have a safety lock switch?

Yes 0Votes Trek Powerfly FS 4 Gen 2

Yes Electric Bikes in this range

Lockout switch prevents accidental activation.

Trek Powerfly FS 4 Gen 2 Soft Start Feature

Does it have a soft start feature?

Yes 0Votes Trek Powerfly FS 4 Gen 2

Yes Electric Bikes in this range

Limits sudden torque on startup for smoother control.

Trek Powerfly FS 4 Gen 2 Vibration Control

Does it include vibration control?

Yes 0Votes Trek Powerfly FS 4 Gen 2

Yes Electric Bikes in this range

System or design to reduce vibrations.

Trek Powerfly FS 4 Gen 2 Noise Level

What is the noise level?

70 dB 0Votes
Trek Powerfly FS 4 Gen 2
57.36 dB (Average)

Overall sound output during operation.

Trek Powerfly FS 4 Gen 2 Crash Sensor

Does it have a crash sensor?

No 0Votes Trek Powerfly FS 4 Gen 2

Yes Electric Bikes in this range

Detects crashes and may trigger alerts.

Environmental Resistance 9

Trek Powerfly FS 4 Gen 2 Operating Temperature Range (Min)

What is the minimum operating temperature?

-10 °F 0Votes
Trek Powerfly FS 4 Gen 2
16.01 °F (Average)

Trek Powerfly FS 4 Gen 2
Trek Powerfly FS 4 Gen 2

-10 °F ≈ -23.3 °C — batteries and displays can suffer reduced performance below freezing; store and charge in warmer conditions when possible.

Minimum safe operating temperature.

Trek Powerfly FS 4 Gen 2 Operating Temperature Range (Max)

What is the maximum operating temperature?

120 °F 0Votes
Trek Powerfly FS 4 Gen 2
106.99 °F (Average)

Trek Powerfly FS 4 Gen 2
Trek Powerfly FS 4 Gen 2

120 °F ≈ 48.9 °C — avoid leaving the battery in direct sun or enclosed hot vehicles to prevent accelerated aging.

Maximum safe operating temperature.

Trek Powerfly FS 4 Gen 2 Water Immersion Rating

What is the water immersion rating?

80 Trek Powerfly FS 4 Gen 2 0 Votes IPX7

18 Electric Bikes in this range IPX4

Trek Powerfly FS 4 Gen 2
Trek Powerfly FS 4 Gen 2

IPX7 means protection against immersion up to 1 m for 30 minutes — indicates some components (likely electronics) can survive temporary submersion, but overall bike ratings may vary by part.

Depth resistance beyond splash.

Trek Powerfly FS 4 Gen 2 Storage Temperature Range (Max)

What is the maximum storage temperature?

140 °F 0Votes
Trek Powerfly FS 4 Gen 2
120.81 °F (Average)

Maximum recommended storage temperature.

Trek Powerfly FS 4 Gen 2 Dust Rating

What is the dust rating?

80 Trek Powerfly FS 4 Gen 2 0 Votes IP5X

18 Electric Bikes in this range IP5X

Protection against dust ingress.

Trek Powerfly FS 4 Gen 2 UV Resistance

Does it have UV resistance?

Yes 0Votes Trek Powerfly FS 4 Gen 2

Yes Electric Bikes in this range

Protection against sun damage.

Ergonomics & Adjustability 12

Trek Powerfly FS 4 Gen 2 Adjustable Stem

Does it have an adjustable stem?

No 0Votes Trek Powerfly FS 4 Gen 2

Yes Electric Bikes in this range

Stem can be raised/lowered or swapped for comfort.

Trek Powerfly FS 4 Gen 2 Adjustable Handlebar Height

Is the handlebar height adjustable?

No 0Votes Trek Powerfly FS 4 Gen 2

Yes Electric Bikes in this range

Handlebars can be moved vertically.

Trek Powerfly FS 4 Gen 2 Adjustable Saddle Height

Is the saddle height adjustable?

Yes 0Votes Trek Powerfly FS 4 Gen 2

Yes Electric Bikes in this range

Seatpost can be raised/lowered.

Trek Powerfly FS 4 Gen 2 Adjustable Seat Angle

Is the seat angle adjustable?

Yes 0Votes Trek Powerfly FS 4 Gen 2

Yes Electric Bikes in this range

Saddle tilt can be modified.

Trek Powerfly FS 4 Gen 2 Adjustable Seatpost Suspension

Does it have adjustable seatpost suspension?

Yes 0Votes Trek Powerfly FS 4 Gen 2

Yes Electric Bikes in this range

Seatpost suspension stiffness can be tuned.

Trek Powerfly FS 4 Gen 2 Handlebar Rotation Adjustment

Can the handlebars be rotated?

No 0Votes Trek Powerfly FS 4 Gen 2

Yes Electric Bikes in this range

Bars can rotate to fine-tune reach.

Surveys

Because hot takes deserve votes.

Trek Powerfly FS 4 Gen 2 Battery Life

How long does the battery of this electric bike last on a single charge?

More than 120 km 0Votes
80 to 120 km 0Votes
50 to 80 km 0Votes
30 to 50 km 0Votes
Less than 30 km 0Votes

Trek Powerfly FS 4 Gen 2 Charging Time

How long does it take to fully charge this electric bike?

Less than 2 hours 0Votes
2 to 3 hours 0Votes
4 to 6 hours 0Votes
7 to 10 hours 0Votes
More than 10 hours 0Votes

Trek Powerfly FS 4 Gen 2 Riding Comfort

How comfortable is this electric bike to ride for daily use?

Super comfortable for long rides 0Votes
Smooth and enjoyable 0Votes
Decent for short rides 0Votes
Somewhat uncomfortable on long rides 0Votes
Feels rough and bumpy 0Votes

Trek Powerfly FS 4 Gen 2 Speed and Performance

How fast can this electric bike go at top speed?

More than 50 km/h 0Votes
40 to 50 km/h 0Votes
30 to 40 km/h 0Votes
20 to 30 km/h 0Votes
Less than 20 km/h 0Votes

Trek Powerfly FS 4 Gen 2 Durability and Build

How durable is this electric bike over long-term use?

Built to last many years 0Votes
Feels reliable 0Votes
Holds up okay 0Votes
Needs frequent repairs 0Votes
Breaks down quickly 0Votes

Trek Powerfly FS 4 Gen 2 Ease of Use

How easy is it to use this electric bike for everyday riding?

Super easy and hassle-free 0Votes
Simple and convenient 0Votes
Pretty straightforward 0Votes
Takes some time to learn 0Votes
Really confusing 0Votes

Trek Powerfly FS 4 Gen 2 Pricing

How do you feel about the price of your electric bike?

Great value for money 0Votes
Pretty good price 0Votes
Fair deal 0Votes
Kinda pricey 0Votes
Crazy expensive 0Votes

Trek Powerfly FS 4 Gen 2 Design and Style

How appealing is the design and style of this electric bike?

Eye-catching and premium 0Votes
Stylish and modern 0Votes
Nice but not special 0Votes
Basic and plain 0Votes
Looks outdated 0Votes

Trek Powerfly FS 4 Gen 2 Motor Power

How powerful is the motor performance of this electric bike?

Over 750 watts 0Votes
500 to 750 watts 0Votes
350 to 500 watts 0Votes
250 to 350 watts 0Votes
Under 250 watts 0Votes

Trek Powerfly FS 4 Gen 2 Weight

How heavy is this electric bike to lift or carry?

Under 40 pounds 0Votes
40 to 50 pounds 0Votes
50 to 60 pounds 0Votes
60 to 70 pounds 0Votes
Over 70 pounds 0Votes

Guides 1

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Quick Reference - 2021 Powerfly FS (PDF)

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Trek Powerfly FS 4 Gen 2
Trek Powerfly FS 4 Gen 2
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Trek Powerfly FS 4 Gen 2
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