U4 All-Terrain E-Bike: The Best Budget Off-Road Beast of 2025

on apr. 26 2025

Tired of struggling uphill on a traditional bike? Fed up with potholes turning your commute into a nightmare? You're not alone.
A recent European cycling survey revealed that over 73% of riders abandoned plans for countryside exploration due to difficult terrain.

Here's the solution:
U4 — the €949 ultimate all-terrain machine with a 1000W motor, full suspension, and unstoppable fat tires.
Delivering 70Nm torque, 48km/h max speed, and supporting up to 150kg load, the U4 is built for both wild trails and urban jungles.


Why U4 is the Best Budget Off-Road E-Bike 2025

Forget overpriced models that barely handle gravel. With the U4, you’re investing in a high-performance, long-range fat tire e-bike with suspension that masters steep hills and city streets — without breaking the bank.

Feature U4 All-Terrain E-Bike
⚡ Motor Power 1000W
🔥 Torque 70Nm
💰 Price €949
🛞 Tires 4.0-inch Fat Tires
🚀 Max Speed 48km/h 
🌄 Suspension Full Front & Rear

The Technology Behind the U4's Wild Power

⚡ 1000W Motor + 70Nm Torque: Power You Can Feel

Real-world testing shows the U4 easily conquers 20° inclines, even fully loaded.
Whether you're scaling rocky hills or tackling steep urban streets, the U4’s motor provides relentless push exactly when you need it.

Searching for the electric bike for steep hills under €1000?
Look no further — the U4 outperforms many e-bikes twice its price.


🔋 48V 15Ah Battery: Built for Real Adventures

  • Up to 30km range on extreme off-road conditions

  • Up to 60km in normal city commuting

🗺️ Visual Comparison: Berlin Ringbahn distance (approx. 55km) vs U4 urban range

The battery is removable, water-resistant, and designed for both fast home charging and convenient swaps on the go.


🛑 Hydraulic vs Mechanical Brakes on E-Bikes

When it comes to hydraulic brakes vs mechanical brakes e-bike debates, U4 leaves no doubts:

  • Hydraulic Disc Brakes reduce stopping distance by up to 40% in wet conditions.

  • Feel smoother modulation, less hand fatigue, and quicker response compared to mechanical brakes.


U4: Your Ride for Every Terrain

🏔️ Off-Road Mode

  • 4.0-inch Fat Tires grip loose gravel, sand, and snow.

  • Full Suspension System absorbs shocks, reducing hand and shoulder fatigue by over 30%.

Ideal for forest trails, mountain paths, and rocky backroads.

🏙️ City Commute Mode

  • Switch to 25km/h compliant mode.

  • Cruise through urban traffic while remaining within legal limits.

  • Full fenders and bright integrated lighting make daily commutes safer and cleaner.


FAQ: Everything You Need to Know Before You Ride

Q: What is the default speed of the U4 out of the box?

A: The U4 comes with a factory-set speed of 25 km/h to comply with European regulations.

Q: Can the U4 be unlocked for higher speed when used on private property? What is the maximum speed after unlocking?

A: Yes, when used on private property, the U4 can be unlocked to reach a top speed of approximately 48 km/h. (Speed may vary depending on rider weight, terrain, incline, and environmental conditions)

Q: Can the U4 really handle daily urban use?
A: Absolutely. Its robust frame and suspension are tuned for durability, whether you're hopping curbs or weaving through city traffic.


Limited Launch Offer: Ride Smarter, Explore Further

🎁 Pre-order the U4 today and receive a €100 Gift Pack, including:

  • A premium waterproof handlebar bag

  • A heavy-duty metal chain lock

  • Rear-view mirror for safer urban navigation

🔗 [Reserve Yours Now] — Be among the first 50 riders to claim this exclusive bonus, until stock runs out! 


Disclaimer: Always check your local regulations regarding e-bike usage, helmet laws, and motor limits. The U4 comes with a factory-set speed of 25 km/h to comply with European regulations.