Electric mountain bikes are no longer just niche gadgets for techy riders, they’re fast becoming the future of trail riding. Among the new contenders is the Bonnell 775 MX, a beastly e-MTB boasting a 6000-watt motor and a top speed of 40 mph. On paper, it promises the kind of thrill that could turn steep climbs and rugged trails into pure adrenaline. But with a hefty $5,500 price tag, does it really deliver enough to justify the investment?
In this review, I’ll break down the build quality, battery efficiency, ride experience, and overall value of the Bonnell 775 MX, so you can decide if it’s the right fit for your riding style.
First Impressions & Build Quality
The Bonnell 775 MX doesn’t try to hide its power. From the moment you see it, the frame screams durability with a rugged design that feels trail-ready. It’s noticeably bulkier than mid-range e-MTBs, but that’s expected when housing a motor of this size.
The suspension system feels dialed in for aggressive riders. Whether you’re planning downhill runs or tackling rocky paths, the geometry provides confidence and stability. That said, this bike isn’t for casual Sunday rides, it feels like it was built for people who want speed and power over leisurely pedaling.
Motor & Performance
Here’s where things get interesting: 6000 watts of power. That number alone places the Bonnell 775 MX in an entirely different league than most e-MTBs. On the trail, this translates to brutal acceleration and a genuine “hold on tight” feeling when you push it.
Hitting 40 mph on a mountain bike is equal parts exhilarating and intimidating. While that kind of speed is a dream for adrenaline junkies, it’s overkill for casual trail riders. If you’re not experienced, the sheer torque could feel overwhelming.
Battery Efficiency & Range
With a motor this powerful, battery life was one of my main concerns. The Bonnell 775 MX doesn’t disappoint, but it’s important to be realistic: you won’t get all-day mileage if you’re constantly pushing the motor at top output.
Under moderate use, mixing pedal assist with bursts of throttle, the bike holds up respectably, delivering several hours of trail time. Heavy riders or those pushing max speeds will drain the battery faster. In short: it’s efficient for its size, but don’t expect miracles.
Ride Experience
The best way to describe riding the Bonnell 775 MX? Controlled chaos.
The suspension soaks up hits, the frame feels solid, and the motor provides an insane surge of power whenever you demand it. Climbing steep terrain becomes almost effortless, and open stretches feel like a motorcycle masquerading as a bicycle.
But here’s the flip side: this bike demands respect. It’s not forgiving if you’re new to high-powered e-MTBs, and it’s definitely not designed for mellow cruising.
Value for Money: Is It Worth $5,500?
At $5,500, the Bonnell 775 MX sits firmly in the high-end e-MTB market. The price is justified for riders who want top-tier performance, raw speed, and a bike that pushes boundaries. If your main goal is weekend trail fun, you’ll find more affordable options that still deliver a great ride.
Where the Bonnell stands out is for serious adrenaline seekers who want unmatched torque and aren’t afraid to handle it. In that sense, it’s less of a “bike for everyone” and more of a specialized machine for thrill riders.
Who Should Buy the Bonnell 775 MX?
The Bonnell 775 MX is not your average electric mountain bike. With its 6000-watt motor, 40 mph top speed, and rugged build, it’s made for experienced riders who want more than just pedal assist, they want an electrified rocket on two wheels.
- Buy it if you’re an advanced rider craving speed, power, and premium performance.
- Skip it if you’re new to e-MTBs, budget-conscious, or prefer casual, easy-going rides.
Conclusion
The Bonnell 775 MX is a powerhouse, but it’s not for everyone. At $5,500, you’re paying for pure adrenaline, and if that’s what you’re after, this bike absolutely delivers.
Check out the Frownies Patch I reviewed earlier.