Trek FX+ 1S Review – In-Depth Analysis of the Ultimate Urban E-Bike

🚴‍♂️ Trek FX+ 1S Review – In-Depth Analysis of the Ultimate Urban E-Bike

📚 Table of Contents

Introduction

The e-bike market has seen a massive boom in the past decade, especially in the commuter segment. One of the standout models in this space is the Trek FX+ 1S. Designed for urban riders, commuters, and casual cyclists alike, the FX+ 1S combines utility, technology, and sleek design into one compelling package. In this comprehensive review, we’ll explore every aspect of this e-bike—from its frame geometry and motor performance to real-world range and smart connectivity.

Overview & Build Quality

Trek’s FX series is known for lightweight, agile bikes aimed at city dwellers and fitness riders. The FX+ 1S adds electric assistance without sacrificing this DNA. It features a lightweight Alpha Gold aluminum frame that tips the scale at just under 50 lbs, even with a fully integrated 520Wh battery. The design is clean, minimal, and functionally refined. Internal cable routing, integrated lighting, and commuter-focused accessories like fender and rack mounts add to its polished look and practicality.

From a construction standpoint, the FX+ 1S is well-balanced, offering the durability needed for rough pavement and light off-road riding while retaining the aesthetics of a high-end urban hybrid bike.

🔧 Specifications & Components

ComponentDetails
MotorHyena 500W rear-hub motor, 60 Nm torque
Battery520Wh internal, non-removable
DisplayColor LCD with ride metrics and assist level control
DrivetrainShimano Altus 8-speed (11-45T cassette)
BrakesRush hydraulic disc brakes, 180mm rotors
FrameAlpha Gold Aluminum
TiresBontrager GR0 Comp 650b x 50mm
LightsHerrmans MR8 headlight & integrated taillight with turn signals
App ConnectivityTrek Central App (via Hyena platform)

⚙️ Motor & Performance

The FX+ 1S features a 500W Hyena rear-hub motor that offers 60 Nm of torque, making acceleration smooth and responsive. Whether starting from a stop at an intersection or climbing a gentle incline, the bike maintains consistent power delivery. It’s a Class 3 e-bike with pedal assist up to 28 mph and throttle-only assist up to 20 mph.

During performance tests, the FX+ 1S reached 20 mph in just under 15 seconds on throttle and accelerated more rapidly under pedal assist. The motor engagement is silent and intuitive, never jerky or delayed.

🔋 Battery Life & Charging

Equipped with a 520Wh internal battery, the FX+ 1S supports medium- to long-distance commutes. The non-removable battery may be a downside for those without indoor charging access, but it allows for a more streamlined frame design.

Charging from 0–100% takes approximately 4 hours using the EasyMag magnetic charger. The battery integrates seamlessly with the Trek Central app for monitoring charge cycles, battery health, and range predictions.

📏 Real-World Range Tests

In range tests conducted by ElectricBikeReport.com, the FX+ 1S achieved:

  • Low Assist: 51.9 miles at an average speed of ~14 mph
  • High Assist: 33.4 miles at ~20 mph

These results place the FX+ 1S at the upper end of real-world commuter e-bike ranges, outperforming many bikes in the sub-$2,000 category. Terrain, rider weight, and assist level impact range, but the overall efficiency is noteworthy.

🚦 Ride Quality, Comfort & Ergonomics

The FX+ 1S’s ride quality is a standout feature. Thanks to wide 50mm tires, a rigid aluminum fork, and a neutral riding position, it offers stability and control even on less-than-perfect city roads. The frame geometry suits a wide variety of rider heights, and the low standover makes it approachable for newer cyclists.

The bike comes in multiple sizes and both step-over and step-thru configurations, ensuring comfort for riders between 5’1” and 6’6”.

📱 Smart Features & Trek Central App

The Trek Central app, powered by Hyena, enhances the FX+ 1S with features such as:

  • Assist tuning: Customize power delivery and responsiveness
  • Range cloud: Visual maps showing battery percentage and distance limits
  • Ride stats: Track speed, distance, elevation, and efficiency
  • Battery insights: View charge cycles, storage mode, and maintenance tips

While the app can occasionally struggle to pair on first attempt, it offers significant value and depth once connected.

🛡️ Safety Features

The FX+ 1S includes comprehensive safety features: bright front and rear lights, integrated turn signals, and brake-light functionality. Its 180mm hydraulic disc brakes perform exceptionally in urban stop-and-go traffic.

Stopping distance in tests was approximately 20 feet from full speed—better than average for e-bikes in its class.

✅ Pros & ❌ Cons

✅ Pros

  • Powerful and smooth 500W motor
  • Long real-world range (up to 52 miles)
  • Lightweight frame under 50 lbs
  • Excellent app integration for motor/battery data
  • Throttle + pedal assist flexibility
  • Integrated lighting and turn signals
  • Hydraulic disc brakes for superior control

❌ Cons

  • Battery is non-removable
  • Plastic pedals may need upgrading
  • Occasional app connection glitches

🔄 Comparison with Similar E-Bikes

RadCity 5 Plus: While offering similar power and features, Rad’s bike is heavier (~65 lbs) and lacks integrated turn signals. However, it has a removable battery and lower cost.

Specialized Turbo Vado SL: Lighter and sleeker than the FX+ 1S, but significantly more expensive with less torque (35 Nm). Better for fitness-oriented riders.

Aventon Level.2: Offers torque sensor and removable battery, but slightly heavier and bulkier in city settings.

The FX+ 1S stands out as the most refined, integrated choice in the ~$2,000 commuter segment with top-tier safety features.

🏁 Final Verdict: Who Should Buy the Trek FX+ 1S?

The Trek FX+ 1S is an ideal choice for urban commuters, casual riders, and anyone looking to upgrade from a traditional bike to a reliable e-bike. Its clean aesthetic, performance motor, extended range, and advanced smart features make it a versatile all-rounder.

Recommended for:

  • Commuters needing speed and range
  • City riders who value safety and integrated lighting
  • Fitness enthusiasts looking to ride further with assist

Not ideal for: Riders who require a removable battery or plan to ride extensive trails with extreme elevation changes.

Overall Rating: ⭐️⭐️⭐️⭐️⭐️ (4.8/5)

If you’re in the market for a balanced, modern, and dependable commuter e-bike, the Trek FX+ 1S should be at the top of your list.


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