EUNORAU Defender S AWD 1500W Full-Suspension Electric Fat Tire Bike Review
Overview
When it comes to all-terrain e-bikes, the EUNORAU Defender S stands in a league of its own. With dual 750W motors, full suspension, and massive fat tires, this bike is built for riders who want more than just a casual cruise — it’s for those seeking true electric adventure.
It’s powerful, fast, and undeniably fun. Some might even say it’s too much bike — but once you feel the surge of both motors kicking in, you’ll understand why this beast has such a loyal following.
Tech Specs
- Motor: Dual 750W geared hub motors (1500W total)
- Top Speed: 45 km/h (28 mph) as tested
- Range: Up to 65 km (40 mi) per battery
- Battery: 48V 17Ah (816Wh), optional second battery
- Weight: 35 kg (77 lb)
- Front Suspension: RST Guide fork, 75 mm travel, preload and lockout
- Rear Suspension: DNM AO-42RC shock, 165 mm travel
- Brakes: Tektro hydraulic disc brakes, 180 mm rotors
- Drivetrain: Shimano Alivio 9-speed with Shimano Altus derailleur
- Display: Color LCD with speedometer, PAS level, battery gauge, odometer, and tripmeter
Unleashing the Power
The Defender S doesn’t hold back. Twist the throttle and the dual motors instantly deliver a surge of torque that launches you forward. Even lightweight riders will notice front-wheel lift if they’re not ready for it.
This e-bike doesn’t include a single-motor or Eco mode — it’s full power all the time. While that can be intimidating on takeoff, it quickly becomes second nature once you’re moving. Riders who prefer smoother starts can use pedal assist, which feels more refined thanks to a gentle power ramp.
⚠️ Ride Responsibly: The Defender S is not your average mountain e-bike. With its weight and power, it’s best suited for open trails, double tracks, or overland-style exploration. Treat it like a two-wheeled off-road vehicle — fun and thrilling, but deserving of respect.
Speed and Climbing
With 1,500W of combined power, the Defender S is made for speed and climbing. Officially, the top speed is listed at 35 mph (56 km/h), but most riders will top out closer to 28 mph (45 km/h) — still more than enough to feel the adrenaline rush.
Thankfully, dual-piston hydraulic disc brakes provide the stopping confidence needed to match that speed. Even at full throttle, the large rotors handle the job with ease, keeping the ride under control.
Comfort and Ride Feel
If comfort matters to you, you’ll love this bike. The combination of full suspension and 4-inch fat tires delivers a plush, cloud-like ride. It’s like cruising on a memory foam mattress — smooth, stable, and forgiving on rough ground.
However, this is a heavy machine, so don’t expect ultra-nimble handling. The Defender S feels more like a rugged Jeep than a lightweight trail bike — and that’s exactly what makes it perfect for adventure seekers.
Battery Options and Range
The Defender S is available in two frame sizes (17" and 19") to suit different rider heights, and offers multiple battery configurations:
- Single Battery: 48V 17Ah (816Wh)
- Dual Battery Option: Adds a second 48V 17Ah battery for extended range
The single-battery setup provides solid performance but can drain quickly under heavy throttle use. Opting for the dual-battery configuration significantly improves range and prevents voltage sag — the momentary power drop you might feel during intense climbs.
During testing, the bike performed flawlessly at full charge. However, when battery levels dropped below 30%, sudden voltage dips occurred under heavy throttle — a clear sign that both motors were demanding more than a single battery could supply.
Final Thoughts
The EUNORAU Defender S is not for everyone — it’s for riders who crave raw power, comfort, and off-road excitement in equal measure. It’s a bold, full-suspension beast that’s as fun as it is fierce.
If you’ve got the budget and the spirit for adventure, this AWD electric fat bike delivers an unforgettable ride every single time.
➡ Available now at EvolveRide.com
Explore the EUNORAU Defender S and discover what true electric freedom feels like.