2025 Surron Ultra Bee Off-Road Electric Bike

Meet the 2025 Surron Ultra Bee Off-Road Electric Bike — a pure-thrill machine built for adrenaline seekers who demand blistering acceleration, serious hill-climbing power, and trail-ready finesse. With a larger battery, a smarter drivetrain, and refined suspension, Ultra Bee turns rugged terrain into your playground while delivering daily riding practicality you can feel on every mile.

Power, Battery, and Propulsion

Experience explosive response from a 21 kW peak / 18 kW continuous PMSM motor, enhanced by Turbo Boost for instant surge when you need it most. The 74V 60Ah Li‑ion battery (4.44 kWh) powers long adventures between charges, with a rapid 20%–80% fill in just 2.5 hours. Ready for real-world pacing, it rockets from 0 to 31 mph in about 2 seconds and tops out at 59 mph for fearless progression on open trails. At the wheel, you’ll enjoy a mighty 377 ft-lb of torque that powers aggressive climbs and smooth, controlled sprints alike.

Drivetrain, Range, and Durability

A carbon fiber primary belt drive dramatically boosts drivetrain longevity — by a remarkable margin of about 60% — so you can ride harder, longer, and with less maintenance. The monocoque frame is forged from 6061-T6 aluminum, delivering stiffness and lightness for agile handling on rough terrain. Between the efficient drivetrain and the energy-dense battery, Ultra Bee achieves a practical WMTC range of 71.5 miles, while riders in more aggressive singletrack can expect around 20 miles of spirited fun on Sport Mode. For longer road days, cruising at ~31 mph can approach 70 miles of practical use.

Suspension, Handling, and Traction

Conquer trails with confidence thanks to a capable suspension setup: a KKE 37 mm fork with 235 mm of travel and robust 7050-T6 outer tubes soak up rocks, roots, and whoops. The chassis, paired with front and rear CST off-road tires, provides planted traction across varying surfaces. Traction control is further refined by a dedicated 3-level Crawl Mode and Surron Traction Control, helping you maintain grip on loose soil, steep grades, or technical sections without wheel spin.

Rider Ergonomics and Geometry

Ultra Bee is tuned for agile, responsive handling without sacrificing comfort. It weighs a lean 195 lbs and features a 35.8-inch seat height with 12.4 inches of ground clearance, offering a balanced center of gravity for precise control on jumps and climbs. The wheel setup—19 × 1.6 front and 18 × 2.15 rear CST rims—pairs with the proven suspension to deliver confident cornering and stable line selection in demanding terrain.

Riding Modes and Real-World Scenarios

Choose the mood that matches the trail and your goals: Eco for efficiency on long rides, Daily for versatile everyday use, Sport for aggressive riding, Turbo when you need the maximum boost, and a Reverse mode for controlled maneuvering in tight spots. The 3-Level Crawl Mode gives you granular control over slow-speed grip and crawl rate, making hill climbs, technical rock gardens, and slow navigation through rough sections less punishing and more controllable.

What’s in the Crate and Practical Details

Each Ultra Bee ships as a complete bike with the essentials: a 1.1 kW US charger, a durable tool roll, and a user manual. For buyers who want an added level of convenience, delivery or professional assembly options are available for an $800 fee at checkout, with a choice between having the unit boxed and shipped to you or assembled at our facility for immediate riding.

Color Options and Availability

Choose between Carbon Black or Desert Brown to match your style and riding environment, with pricing starting from $6,499 (DDP shipping included in the price). The Ultra Bee’s standout look pairs with its standout performance to make a bold statement on any trail or road.

Who This Is For

Ideal for riders who crave stadium-grade acceleration off-road, who regularly tackle steep descents or long climbs, and who want a machine that can double as a capable weekend trail bike and a practical daily ride. If you’re ready to push the edge of what an electric dirt bike can do—without sacrificing reliability or ease of use—the 2025 Surron Ultra Bee is engineered for you.