The electric bike revolution continues to spark excitement, and one name that consistently makes headlines in the e-dirt bike world is Sur-Ron. Known for its innovative engineering and high-performance designs, Sur-Ron has created the Ultra Bee — an electric powerhouse designed to dominate trails and urban environments alike. Among its impressive features is the SurRon Ultra Bee top speed, which attracts enthusiasts looking for performance and thrill.
In this detailed article, we’ll explore everything you need to know about the SurRon Ultra Bee top speed, performance capabilities, specifications, battery range, design, and why it stands out in 2025’s e-motorcycle market.
1. What Is the Sur-Ron Ultra Bee?
The Sur-Ron Ultra Bee is positioned as the evolution of Sur-Ron’s electric bike lineup — more muscular and advanced than the Light Bee, but lighter and more agile than the Storm Bee.
It’s engineered to bridge the gap between off-road adventure and real-world practicality. With modern styling, exceptional ride quality, and outstanding battery management, the SurRon Ultra Bee has become a fan favorite for riders seeking balance between performance and efficiency.
2. SurRon Ultra Bee Top Speed
So, just how fast can it go?
The SurRon Ultra Bee top speed is approximately 56–68 mph (90–110 km/h), depending on riding mode, rider weight, and terrain. This makes it one of the fastest mid-class electric dirt bikes on the market in 2025.
Riding Modes and Speed Output:
- Eco Mode: Limits power for longer battery life, hitting around 40 mph (64 km/h).
- Sport Mode: Unlocks greater torque and speed, reaching up to 60 mph (96 km/h).
- Boost Mode (Turbo): Temporarily increases power for bursts up to 68 mph (110 km/h).
The SurRon Ultra Bee top speed allows it to comfortably keep pace with small-displacement motorcycles while maintaining the smooth, silent, and eco-friendly characteristics of an electric vehicle.
3. Performance and Powertrain
Achieving that speed is no accident — the SurRon Ultra Bee packs serious drivetrain engineering.
- Motor Power: 12.5 kW (peak)
- Nominal Power: 7 kW
- Peak Torque: 440 Nm at the rear wheel
- Motor Type: PMSM (Permanent Magnet Synchronous Motor)
This setup gives the Ultra Bee immediate throttle response and powerful acceleration from a standstill. Riders experience that satisfying electric surge right off the line — reaching 30 mph in just about 2.5 seconds.
Compared to traditional gas dirt bikes, the torque delivery is smoother, quieter, and nearly maintenance-free.
4. Battery Capacity and Range
The SurRon Ultra Bee is powered by a state-of-the-art 74V 55Ah lithium-ion battery pack, developed for longevity and thermal efficiency.
Battery and Range Highlights:
- Energy Capacity: 4.05 kWh
- Charging Time: 4.5–5 hours (standard charger)
- Quick Charger: 2.5 hours (optional)
- Riding Range:
- Up to 87 mi (140 km) on Eco mode
- 55 mi (88 km) on mixed use
- About 40 mi (64 km) at sustained top speed
The battery features an integrated Battery Management System (BMS) that optimizes power flow and prevents overheating, ensuring consistent performance even during aggressive riding sessions.
5. Design That Supports SurRon Ultra Bee Top Speed
The Ultra Bee doesn’t just look powerful — it’s built to handle stress at top performance. Every detail is engineered for efficiency and agility.
Design Features:
- Chassis: Forged aluminum frame, lightweight yet incredibly strong
- Weight: Approx. 85 kg (187 lbs)
- Seat Height: Around 940 mm
- Wheelbase: 1380 mm for stability at high speeds
- Style: Sleek, futuristic dirt-bike aesthetic with full LED lighting
The geometry ensures stability when pushing toward the SurRon Ultra Bee top speed while preserving tight maneuverability for technical trails.
6. Suspension, Brakes, and Handling
Speed is only meaningful if you can control it — and the SurRon Ultra Bee exceeds expectations here.
- Front Suspension: Fully adjustable 37mm inverted fork
- Rear Suspension: Multi-link monoshock
- Brakes: Dual hydraulic discs with optional ABS system
This advanced suspension setup can handle jumps, tight corners, and uneven ground effortlessly. Combined with a low center of gravity, the Ultra Bee feels grounded and balanced even at its maximum velocity.
7. SurRon Ultra Bee Top Speed vs. Other Models
To truly appreciate the SurRon Ultra Bee top speed, let’s compare it to its siblings:
| Model | Motor Power | Top Speed | Weight | Ideal For |
|---|---|---|---|---|
| SurRon Light Bee | 6 kW | 47 mph (75 km/h) | 58 kg | Beginners / Light trail use |
| SurRon Ultra Bee | 12.5 kW | 68 mph (110 km/h) | 85 kg | Intermediate riders / Dual use |
| SurRon Storm Bee | 22.5 kW | 75 mph (120 km/h) | 125 kg | Advanced / Professional riders |
The Ultra Bee effectively balances weight, speed, and handling, giving you near-Storm-Bee performance without the added heaviness or cost.
8. Riding Experience and Control
The first thing riders notice about the SurRon Ultra Bee is how naturally it handles. Thanks to its electric torque, you get strong acceleration and instant throttle feedback.
At full SurRon Ultra Bee top speed, the ride remains stable — no shaking, no lag, just a linear flow of smooth electric power.
Rider Impressions:
- “It feels fast yet manageable — a perfect balance.”
- “Acceleration off the line is addictive.”
- “Handles better than most gas dirt bikes in this weight range.”
Whether you’re trail riding, exploring mountains, or cruising in open terrain, the Ultra Bee delivers a versatile riding experience.
9. Safety Features and Technology
Sur-Ron has packed the Ultra Bee with intelligent features that make riding both exhilarating and secure.
Technology Highlights:
- Traction Control System (TCS): Enhances grip at high speed
- Regenerative Braking: Converts kinetic energy into battery power
- Digital Display: Real-time speed, mode, temperature, and battery readings
- Dual Ride Modes Switch: Seamless shifting between Eco and Sport
- Connectivity: App integration for diagnostics and ride stats
These innovations not only improve the SurRon Ultra Bee top speed performance but also extend battery efficiency and durability.
10. Maintenance and Durability
Electric bikes like the SurRon Ultra Bee require less upkeep than fuel-powered ones. There’s no oil, filters, or carburetor — but consistent maintenance ensures peak performance.
Maintenance Tips for Long-Term Speed:
- Check Tire Pressure before every ride to optimize traction and range.
- Clean Battery Connectors regularly to prevent energy loss.
- Inspect Brake Pads monthly for wear.
- Lubricate Suspension Links occasionally for smooth handling.
- Charge after every ride to keep battery cells active and consistent.
Following these steps will help maintain consistent acceleration and ensure you always hit that SurRon Ultra Bee top speed safely.
11. Is the SurRon Ultra Bee Street Legal?
Whether you can ride at SurRon Ultra Bee top speed on the street depends on local laws.
In most regions, the bike is categorized as an off-road model. However, street-legal kits — including mirrors, indicators, license brackets, and horns — can make it compliant with local road regulations.
Always check your jurisdiction’s e-bike classification rules before registering it for road use.
12. Price and Availability in 2025
As of 2025, the SurRon Ultra Bee is priced between $3,500 and $2,200 USD, depending on dealer location and configuration.
Considering its high-end performance and technology, the bike represents exceptional value for riders looking for a premium electric experience that can rival small displacement motorcycles.
Compared with the Light Bee and Storm Bee, the Ultra Bee delivers the best balance of top speed, agility, and affordability.
13. Pros and Cons of the SurRon Ultra Bee
Pros
- Impressive 68 mph top speed
- Lightweight yet durable aluminum frame
- Long range with fast-charging battery
- Exceptional handling and suspension
- Nearly maintenance-free motor
Cons
- Limited availability in some markets
- Range drops when sustaining top speed
- Not street-legal in stock configuration
14. Final Verdict: Is the SurRon Ultra Bee Worth It?
If you’re looking for an electric dirt bike that combines performance, speed, and style, the SurRon Ultra Bee is one of 2025’s best choices.
Its balance of agility and power, along with its impressive top speed of up to 68 mph, makes it perfect for riders who want a thrilling yet practical electric bike.
Light enough for daily use but powerful enough for racing trails, the SurRon Ultra Bee redefines what mid-class e-dirt bikes can achieve. It’s proof that electric can be both sustainable and seriously fast.
