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2023 Trek Powerfly FS 4 Review

Are you planning to buy an electric mountain bike? Do you have plans to hit the trails and mountains with a reliable power-assisted model?

The Trek Powerfly FS 4 is one of the most popular electric bikes on the market. With its motorized assistance, mid-drive design, and trail-ready components, it could be the perfect bike for your next ride.

Since its launch, Trek’s Powerfly FS 4 has become a fan favorite among mountain bikers. Its blend of power and agility make it an ideal choice for cyclists looking for serious performance on their rides.

The Powerfly FS 4 is designed to offer unparalleled experiences both off-road and on urban streets.

In this review, we look at the features that make this e-bike one of the best in its class and also elaborate on what it brings to the table in terms of value for money.

2023, Trek’s model year for all mountain e-bikes is here and the Powerfly FS 4 is their latest offering.

It’s a bike that caters to riders looking for a full suspension electric mountain bike with enough torque to take on anything you throw at it.

The Powerfly FS 4 also has several features that are sure to appeal to more serious cyclists, such as an optimized magnesium rocker link, adjustable assist levels, rack and fender mounts, and much more.

This review will go over the features of the 2023 Trek Powerfly FS 4 and provide an overview of its performance.

Take your off-road adventures to the next level with the 2023 Trek Powerfly FS 4, a performance mountain bike equipped with the latest technology to optimize your trails.

Featuring a Shimano 10-speed drivetrain and one of a kind eMTB motor system, this electric bike allows you to push beyond your typical limits and explore places that would normally be inaccessible.

With an upgraded suspension system, increased range, and safety features such as room for integrated lights and an updated dropper post design, you will experience no limit rides.

– Shimano Deore 1×10 speed drivetrain shifts quickly and smoothly.

– Motor system provides automatic support during off-road ascents.

– 120mm SR Suntour XCR 34, air spring suspension front fork improves agility on trails.

– TranzX dropper post design for quick seat adjustment on the fly.

– Increased range for longer riding distances than ever before.

– High volume Bontrager XR3 Comp tires provide great grip even in tough terrain conditions.

– Bosch PowerTube 500Wh battery powers the entire drive train without weighing down ride.

Motor & Battery

The 2023 Trek Powerfly FS 4 comes equipped with a Bosch Performance CX electric motor that provides up to 85 Nm of torque.

You can expect roughly 40 miles (64 km) on the 500Wh battery.

Frame & Suspension

At its core, the 2023 Trek Powerfly FS 4 is built with an oversized aluminum frame that offers 100mm travel at both ends in either 27.5 or 29er wheel sizes.

To ensure your ride stays smooth no matter what terrain you encounter, you can run up to a 120mm front fork.

If you want crisp shifting performance even in steep sections then this bike has you covered thanks to its 1×11 drivetrain consisting of Shimano Deore level components.

The cassette offers a 11-46t and its paired to a 36t chainring up front mounted to a FSA Bosch crankset.

Other features include powerful Tektro hydraulic disc brakes for assurance when descending rough trails as well as custom Bontrager Alex MD35, tubeless compatible wheels that have been designed especially for e-MTB use.

It also comes with a remote fork lockout so you can instantly stiffen your front end when climbing those stubborn hills.

Final Verdict

All things considered, if you’re looking for an all mountain electric mountain bike then the 2023 Trek Powerfly FS 4 should definitely be one of your top choices due to its versatile components and great price point made possible through countless hours of engineering from Trek’s research team.

Order online and have it shipped to your local dealer for final assembly!!

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9 Reasons to Buy the Powerfly FS 4

The Trek 2022 Powerfly FS 4 features a suspension system, making it suitable for mountain biking and off-road adventures.
The bike utilizes Trek's Alpha Platinum Aluminum frame, ensuring durability and strength.
Equipped with the reliable Performance CX mid-mounted motor by Bosch, providing efficient and powerful assistance while riding.
The integrated battery is removable, allowing for easy charging and replacement.
The bike offers additional features ready for customization, giving users the ability to personalize their riding experience.
The new Trek Powerfly FS is versatile and high-performing, suitable for various terrains and riding styles.
The e-bike is equipped with top-of-the-line hardware, ensuring quality and reliability.
Despite its high quality, the Trek Powerfly FS is considered affordable, offering value for money.
The design of the bike allows for great off-road handling, providing a thrilling and enjoyable riding experience.

1 Reasons Not to Buy the Powerfly FS 4

The bike's small display screen might be inconvenient for some users, potentially affecting visibility and ease of navigation.

Bottom Line

The Trek Powerfly FS 4 is a top-performing e-bike that offers durability, versatility, and value for money. With its suspension system and strong frame, it's perfect for off-road adventures. The reliable motor and removable battery provide efficient assistance and easy charging. Plus, the customizable features allow users to personalize their riding experience. While the small display screen may be a drawback for some, overall, the Powerfly FS 4 delivers a thrilling and enjoyable ride.

Average Expert Scores

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Trek Powerfly FS4 EQ: From a short-stroke E-MTB to a sporty SUV

Filed Under: E-Bikes , Mountain bikes , Tests , Trekking / Urban / City Tagged With: Bosch CX , E bike , E-MTB , E SUV , Trek

7 January 2024 by Michael Faiss Leave a Comment

E-SUV / Test: With the Trek Powerfly FS4 EQ, Trek offers an attractively priced E-SUV bike with a sporty character and a beautiful, versatile aluminum frame. The built-in Bosch drive also contributes to the strong overall impression, although a few compromises cannot be avoided given the price.

The Powerfly is actually not a “real” E-SUV, but it is a real mountain bike. Equipped with medium travel - 120 mm at the front, 100 mm at the rear - it could best be described as a touring fully for those who don't necessarily want to ride extreme trails. Above all, such an electric fully is ideal as a basis for an electric SUV, because the suspension travel can be shorter there. On the other hand, you're happy to take the powerful drive of an E-MTB with you on your everyday fully equipped bike - here Trek relies on the proven Bosch Performance CX, which with 85 Nm of torque and high peak power can be ridden in a relaxed manner even on the mountain and with little effort. The battery has a capacity of 625 watt hours and can be removed from the frame to the right. The Bosch Smart System also includes the practical LED remote on the handlebar grip and the compact, easy-to-read Kiox 300 display. Moderate suspension travel and trapezoidal frame. What is interesting is that the frame almost looks like a “trapezoidal” because the top tube slopes sharply. This fits perfectly with the unisex trend in frame shapes; On the E-MTB, this design also improves freedom of movement on the bike.

The relatively low price of the Trek E-SUV bike is noticeable when it comes to equipment. The broadly graduated Shimano Deore gears “only” come with ten gears, but still offer a more than sufficient range. The brakes and chassis are rather functional, but in our opinion quite appropriate for an e-bike in this class; After all, you probably won't be tackling any demanding enduro trails with the Powerfly EQ. On the other hand, it's nice that the Americans didn't save money elsewhere and gave the versatile bike a seat post that can be retracted from the handlebars, even in the cheapest equipment version. The short mudguards are stylish but not always practical; Especially on the front wheel, when the road is wet, this means that your feet don't always stay completely dry.

The Trek Powerfly FS4 EQ

When it comes to driving characteristics, the Trek Powerfly EQ scores points with its high level of comfort and the usual impressive Bosch CX motor. Whether the rather small battery is a disadvantage depends on the application - some people may even be happy about the weight saving of almost one kilogram compared to the 750 Wh version. The bike's sporty roots are definitely noticeable in the seating position, but without pushing themselves into the foreground. Nevertheless, the Powerfly EQ is more of a comfortable e-MTB than a sporty trekking bike.

Conclusion: Trek Powerfly FS4 EQ

High comfort

Very short mudguards
Rather small battery

About Michael Faiss

Michael Faiß studied English and history in Munich. After spending a year in England, he worked as a translator for the magazine Procycling and the Degen Mediahouse, among others. He has also been a passionate cyclist and mechanic since childhood and feels at home off the beaten track in particular.

Velomotion: The magazine for tests, technology, advice and news about bicycles and e-bikes

Velomotion is your digital magazine for all topics related to bicycles and e-bikes: editorially and journalistically independent and always up-to-date, our team of experienced bike editors reports on the latest bicycles, accessories, news and trends as well as everything that cyclists have to say about today need to know your favorite means of transport.

Velomotion tests bicycles, e-bikes and accessories on a daily basis

A new e-bike drive from Bosch? A new mountain bike gear from Shimano? One hundred percent recycled tires from Schwalbe? A new catalog of fines for cyclists? On www.velomotion.de you will find out first. All tested bikes or products are tested extensively in practice by our editors and the experiences are honestly shared with readers. Around 30.000 readers (source: Google Analytics) visit Velomotion.de every day to read the extensive practical tests, product news, guides and reports from professional cycling. The monuments of cycling, such as the Giro d'Italia, Tour de France or classics such as Paris-Roubaix, are presented on Velomotion by our competent team of experts with a lot of specialist knowledge and analyzed after the races.

Velomotion also on Youtube

Velomotion's strong YouTube channel with around 20.000 subscribers offers new and very extensive videos every week. Be it laboratory analyzes of all common e-bike drives, practical tests of new MTBs on the most demanding trails or racing bike innovations with professional expertise - videos from Velomotion are highly valued by all viewers.

Sister channel Gravity Magazine

Anyone who wants to have a blast on coarse tires, especially downhill, or just likes to watch others hurl themselves down the mountains should take a look www.gravity-magazine.de and throw the associated Youtube channel.

Powerfly FS 4 Gen 2

"Powerfly FS wins Best in Test"

"Powerfly FS blends sporty handling, efficient propulsion and long-distance comfort into a harmonious overall concept. The result: pure riding fun! "

E-MTB Category Winner

"The jury was enthralled by the upright and comfortable riding position on long tours while the bike also shines on moderate terrain thanks to its fun ride and intuitive handling."

Get rewarded for going electric

Electric bike rebate programs are popping up all over the country, meaning you could save big when you buy a Trek e-bike! See if you're eligible for a rebate near you.

How to responsibly recycle your e-bike battery

How to ride on mountain bike trails.

Guidelines and tips for protecting and sharing the trails you ride.

5 things to do before every mountain bike ride

Do this quick pre-ride safety check before you hit the trails.

How do Bontrager WaveCel helmets work?

Learn more about a major advancement in the protection against cycling-related head injuries.

Product features

Bosch performance line cx motor.

Bosch Performance Line CX sets the standard for eMTB performance with up to 85Nm of torque and an intelligent eMTB mode with Extended Boost that automatically adjusts the amount of assist based on the terrain.

Custom eMTB Lite mode

Trek eMTBs feature a custom eMTB Lite mode in place of Tour mode. It gives you more natural-feeling power delivery and longer battery life.

Removable Integrated Battery

RIB is a one-piece battery and cover with a built-in handle that can easily be removed and re-installed in the frame with no tools and no hassle. It’s the most convenient way to remove your battery for transport, security, or just easier charging.

What is the range?

To see how far you can ride your electric mountain bike on a single charge, check out Bosch’s range calculator. We’ve auto-filled the variables for this bike model and the average rider, but you can make adjustments to get your most accurate estimate.

Compliant with leading safety regulations

The e-systems on Trek and Electra e-bikes are third-party tested to meet the latest e-bike safety regulations, including the stringent UL 2849 certification — so all you have to worry about is where your e-bike will take you next.

Suspension Calculator

This suspension calculator will help you optimize your suspension settings for your riding weight. Simply follow the steps to find your best set up.

Bosch Purion Display

Bosch's Purion display features a fully-functional speedometer with a backlit display, service interval indicator, and battery range indicator. Its thoughtful design allows riders to scroll through functions or choose the right level of support while maintaining contact with handlebars.

Smart Wheel Size

The right wheel size paired with your frame size gives you the perfect combination of responsiveness and control.

Dropper post

Use the remote lever to lower your saddle so it's out of your way when you're descending and cornering.

Integrated speed sensor

You've got one less detail to sweat with the integrated speed sensor. The chainstay-mounted sensor stays protected while the custom hub-mounted magnet stays secure—no more error codes from mis-aligned sensors.

Lighting ready

The bike is already internally wired to accept additional lights. Go to your dealer and simply have them attached to the bike and plug them in.

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Powerfly FS 4

$4699.99 msrp.

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