In recent years, electric bikes have evolved from a niche commuter solution into a mainstream movement embraced by riders of all ages. For adult riders in particular, eBikes offer a convenient, eco-friendly, and exhilarating alternative to traditional transportation. Whether it’s the ability to cruise uphill with ease, explore backcountry trails, or simply enjoy a low-effort weekend ride, eBikes are changing the way people experience cycling.
Among this growing trend, Mokwheel has emerged as one of the most trusted names in electric mobility — known for its commitment to performance, safety, and innovation. And now, they’ve unveiled a game-changer for adventure-ready adults who demand both comfort and off-road capability: the Onyx ST.
As Mokwheel’s first step-through electric mountain bike powered by a powerful mid-drive motor, the Onyx ST redefines what a low-step eBike can do. It’s packed with trail-ready performance, long-range stamina, and intuitive controls — all wrapped in a frame that’s easy to mount and designed for total confidence.

Designed for Comfort and Confidence: Step-Through Frame
The first thing that sets the Onyx ST apart is its step-through frame — a feature often associated with commuter bikes but rarely paired with true off-road power. Mokwheel’s design changes that, bringing together ease of access and mountain bike muscle in one.
This low-step frame design makes it especially easy for:
- Adults with mobility limitations
- Shorter riders
- Women who prefer not to swing a leg over a high top tube
- Older adults seeking comfort and stability
But make no mistake — this isn’t just a commuter frame. The Onyx ST combines its accessible geometry with a full suspension system and a 1300W mid-drive motor, proving that comfort and capability can coexist. Riders can confidently take this eBike on dirt trails, rocky paths, and hilly terrain without compromising on comfort or control.
Powerful Mid-Drive Motor: Peak Performance at Your Command
At the heart of the Onyx ST is a 1300W peak mid-drive motor, one of the most powerful in its class. Mid-drive motors are preferred by serious riders for a reason: they deliver power more efficiently, especially on hills and technical terrain, because they leverage the bike’s drivetrain and gears.
Unlike rear-hub motors that simply push the bike forward, a mid-drive motor provides centered, balanced propulsion that feels intuitive and responsive. That difference becomes especially noticeable when climbing steep hills, navigating switchbacks, or riding on loose gravel.
Mokwheel’s motor setup also includes both torque and cadence sensors, giving the rider a truly natural riding experience. Torque sensors adjust power output based on how hard you’re pedaling, while cadence sensors respond to pedal speed. Combined, they create a riding feel that’s not only smoother but also more energy-efficient.
If you’ve ever felt like electric bikes were either too jerky or too sluggish — the Onyx ST’s millisecond response system will be a revelation.

Built for the Rough: Full Suspension for Serious Terrain
While the frame and motor power deliver a confident ride, the suspension system is what makes the Mokwheel Onyx ST trail-ready. The bike features dual front and rear suspension, allowing it to glide over rocks, potholes, tree roots, and bumpy terrain without jolting the rider.
- Front Suspension Fork: Absorbs impacts from uneven trails and drops.
- Rear Shock: Stabilizes the frame and reduces fatigue on long rides.
Together, they ensure maximum control, comfort, and endurance, even on rugged mountain routes.
To complement this suspension system, TEKTRO quad-piston hydraulic brakes are installed, offering exceptional stopping power, especially on steep descents or wet surfaces. These brakes are widely recognized for their durability and performance, making the Onyx ST a reliable companion in all conditions.
Long Range Adventure-Ready Battery
What good is power without endurance? That’s why Mokwheel paired the Onyx ST with a 48V 19.6Ah high-capacity battery that supports up to 60–80 miles of range per charge (depending on conditions and PAS level).
This extended range makes the bike a great option for:
- Weekend trail rides
- Full-day outdoor adventures
- Longer urban commutes without the need to recharge midday
In addition, the Onyx ST features a stem-integrated display with passcode protection, ensuring your bike is not only smart but also secure. Riders can monitor speed, battery life, and power levels while protecting their ride from unauthorized use.

Everyday Practicality Meets High-End Specs
While the Onyx ST is clearly an off-road powerhouse, Mokwheel didn’t overlook its everyday usability:
- Top speed: 28 MPH with 5-level pedal assist (PAS), giving you full control over speed and effort.
- Payload capacity: A robust 400 lbs, ideal for larger riders or carrying gear and groceries.
- Fast charging: Comes with a 48V 3.0A charger, significantly reducing downtime between rides.
All of this means you can go from city streets to wooded trails without switching bikes — the Onyx ST is a true all-rounder.
Why Onyx ST Stands Out in 2025
In the growing market of electric bikes for adults, the Onyx ST stands out not just because it’s powerful — but because it’s affordable. While many mid-drive electric bikes start at extremely high price points, Mokwheel has managed to deliver premium performance at a more accessible cost.
That makes the Onyx ST a perfect entry point for riders who want the benefits of mid-drive motors, full suspension, and long-range capability without breaking the bank.
What also gives Mokwheel an edge is its reputation. Riders know and trust Mokwheel for quality engineering, attentive customer service, and innovative designs tailored to real-world riders. With the Onyx ST, they’ve taken all of that experience and wrapped it into a mid-drive eBike that welcomes more people into the off-road world.
Conclusion
If you’re in the market for a powerful, versatile, and comfortable electric mountain bike, the Mokwheel Onyx ST should be at the top of your list.
To recap:
- Step-through frame for easy access and confident riding
- 1300W mid-drive motor for hill-crushing power and control
- Full suspension system for stable, smooth off-road rides
- 60–80 miles of range for all-day adventures
- 400 lb payload and 28 MPH top speed for practical, everyday use
Ready to upgrade your ride?Explore the Mokwheel Onyx ST and other electric bikes for adults, off-road enthusiasts, and city riders by visiting Mokwheel’s website. Discover what mid-drive performance and step-through design can do for your next adventure.