The Goldilocks of Electric Dirt Bikes
First, the 2025 Surron Ultra Bee represents a massive leap forward for Surron’s mid-sized electric motorcycle . Cycle News describes this model as the “Goldilocks” of the Surron lineup—big enough for full-sized adults, yet adjustable enough for beginners . Unlike the smaller Light Bee X, the Ultra Bee accommodates taller riders comfortably without the bulk of the full-sized Storm Bee .
The 2025 Ultra Bee HP (High Performance) builds on the original 2023 model with dramatic improvements. The 18kW sustained power represents a 44% increase over the previous 12.5kW output, with a new “Turbo” mode pushing peak output to 21kW .
2025 Ultra Bee vs. Previous Generation
| Feature | 2023/2024 Ultra Bee | 2025 Ultra Bee HP |
|---|---|---|
| Peak Power | 12.5kW | 21kW Turbo / 18kW sustained |
| Battery | 74V 54Ah? | 74V 60Ah (4.4kWh) |
| Charging | Standard | 2.5 hours (20-80%), 4 hours full |
| Suspension | Standard | 50% stronger fork, enhanced damping |
| Motor Design | Traditional | “Hairpin” winding for efficiency |
| Ride Modes | Sport, Eco, Daily | + Crawl mode, + Reverse |
| MSRP | $6,499 | $6,499 (same price!) |
The engineering team has kept the price remarkably stable despite major component upgrades. Previous generation owners will find the 2025 model significantly quicker and better suspended .
Hairpin Motor: 21kW Peak, 377 Lb-Ft Torque
The 2025 Ultra Bee HP employs Surron’s new “Hairpin” motor design . This technology uses rectangular windings that improve electrical conductivity and dissipate heat more effectively than traditional round windings .
Power specifications:
- Sustained power: 18 kW (24.1 horsepower)
- Peak “Turbo” mode: 21 kW
- Peak torque: 377 lb-ft (at the wheel)
- Top speed: 59 mph (95 km/h)
Cycle News testing found the additional power genuinely quick, requiring finesse to use its full potential . The Turbo mode produces a 10-second power burst, though testers noted it can cut out precisely when you need it most .
74V 60Ah Battery (4.4kWh) with Hairpin Cells
The 2025 Ultra Bee features a completely new 74V 60Ah lithium-ion battery pack with 4.4 kWh capacity . This represents a significant upgrade from the previous generation’s battery.
Charging specifications:
- 20% to 80%: Approximately 2.5 hours
- 0% to 100%: Approximately 4 hours
- Charger included: Standard 110-volt unit
Range performance:
- Claimed maximum: 71 miles (conditions permitting)
- Real-world testing: 60 miles / 2.5+ hours of trail riding
- Variability: Terrain and riding intensity significantly affect range
Cycle News tracked their 2025 test bike using Strava and achieved over 2.5 hours of moving time on trails, covering up to 60 miles . Interestingly, this proved nearly identical to their 2024 comparison bike—the additional power likely consumed the extra battery capacity .
Suspension: 50% Stronger Fork
The 2025 Ultra Bee receives a significantly upgraded suspension system . According to spec sheets, the front fork is 50% stronger than previous versions with enhanced damping .
Suspension specifications:
| Component | Specification |
|---|---|
| Front fork travel | 9.4 inches (240mm) |
| Rear shock travel | 9.4 inches (240mm) |
| Fork type | 37mm inverted fork, adjustable compression/rebound |
| Rear type | TR Intersect monoshock, adjustable preload/compression/rebound |
Cycle News testers noted the forks are “much more compliant over small rocks” and represent a “significant upgrade” over the previous model . The suspension outperforms most trail bikes, though the 9.4 inches of travel doesn’t match high-performance off-road bikes with nearly 12 inches .
Ride Modes and Technology
The 2025 Ultra Bee offers multiple selectable ride modes to suit different conditions and rider skill levels :
| Mode | Description | Best For |
|---|---|---|
| Eco | Lowest power output | Maximizing range, beginners |
| Daily | Balanced power | Everyday trail riding |
| Sport | Full 18kW power | Experienced riders, aggressive terrain |
| Crawl | Ultra-low speed | Technical sections, beginners |
| Turbo | 10-second 21kW burst | Hill climbs, passing |
Standard rider aids include:
- Surron Traction Control System (SRTC): Adjustable for varying conditions
- Surron Energy Regenerative System (SERS): Adjustable coasting regen modes
- Adjustable throttle sensitivity: Customize power delivery feel
- Reverse mode: Helpful for extracting from tricky situations
Cycle News appreciated the updated controller’s “significantly improved modulation in slippery conditions” though they found the Turbo mode created control issues due to its abrupt nature .
19″ Front / 18″ Rear Wheels
The 2025 Ultra Bee continues with Surron’s unconventional wheel sizing :
| Wheel | Size | Tire |
|---|---|---|
| Front | 19 inches | 80/100-19 |
| Rear | 18 inches | 100/90-18 |
The switch to an 18-inch rear wheel during the 2024 model year was a welcome change from the 19-inch rear on earlier versions . These smaller wheels contribute significantly to the bike’s light 195-pound weight .
Braking System: 240mm Discs with Left-Hand Rear Brake
The 2025 Ultra Bee features 240mm hydraulic disc brakes front and rear . A unique characteristic of Surron electric motorcycles is the rear brake placement—it operates via a hand lever on the left handlebar, where a clutch would normally sit .
Braking specifications:
- Front brake: 240mm hydraulic disc
- Rear brake: 240mm hydraulic disc (left-hand lever)
- Performance: Predictable stopping power, no fade even on gnarly descents
Cycle News found the braking system performed well and never faded, even on challenging descents . The left-hand rear brake eliminates the need for a foot brake, allowing riders to focus on weighting the footpegs for traction .
For riders accustomed to clutch modulation on climbs, the left-hand rear brake somewhat mimics that function . For newer riders, the absence of a brake pedal or shift lever simplifies operation considerably .
Dimensions and Ergonomics
The 2025 Ultra Bee dimensions suit a wide range of riders :
| Measurement | Value |
|---|---|
| Seat height | 35.8 inches |
| Ground clearance | 12.4 inches |
| Wheelbase | 54.3 inches |
| Length | 79.1 inches |
| Width | 33.5 inches |
| Height | 46.5 inches |
At 35.8 inches, the seat height is approximately two inches lower than most full-size off-road motorcycles . The 54.3-inch wheelbase is roughly four inches shorter than conventional dirt bikes . These dimensions make the Ultra Bee more approachable for shorter riders while still accommodating taller riders comfortably .
Weight: 195 Pounds Ready-to-Ride
The 2025 Ultra Bee claims a ready-to-ride weight of 195 lbs (88.5 kg) . This is approximately 50 pounds lighter than a ready-to-ride 300cc two-stroke off-road motorcycle and lighter than most entry-level trail bikes .
Weight comparison:
| Bike | Weight |
|---|---|
| 2025 Surron Ultra Bee | 195 lbs |
| Typical 300cc two-stroke | ~245 lbs |
| Light Bee X | ~123 lbs |
| Storm Bee | ~287 lbs |
The light weight contributes to the Ultra Bee’s maneuverability and approachability for newer riders . Experienced riders will appreciate how the light weight makes technical terrain more manageable .
Display and Controls
The 2025 Ultra Bee features a multi-function display that shows:
- Current speed
- Distance traveled
- Power level selected
- Traction control settings
- ABS settings (where equipped)
- Battery level
- Ride mode
The display is backlit for visibility in varying light conditions . The control layout is intuitive, with the left handlebar housing the rear brake, mode selection buttons, and traction control adjustment .
Under-Seat Storage
The 2025 Ultra Bee includes a clever under-seat storage compartment . Located where an air filter would typically reside on a gas bike, this area accommodates the charger or other small items . This feature adds practicality for trail riding where carrying the charger might be necessary .
Price and Availability
| Market | MSRP | Additional Costs |
|---|---|---|
| United States | $6,499 | Freight, setup, taxes |
| Canada | $7,999 CAD | $200 freight/PDI, taxes |
| China (B2B) | ~3,800−4,600 | Import fees, shipping |
The US MSRP remains at $6,499—the same price as the previous generation despite major component upgrades . Dealers may add freight, Pre-Delivery Inspection fees, and other charges, so final out-the-door pricing varies .
Canadian pricing is 7,999CADplus200 freight and PDI plus applicable taxes .
Durability and Reliability
Cycle News logged over 250 miles on their 2025 test bike and over 600 miles on a 2024 model without issues . They used the 2024 model for course marking at the Tennessee Knockout and then raced it at the TKO, accumulating significant time with consistently strong results .
The only issue encountered: spinning the tire on the rim due to no rim locks—a simple fix owners can add themselves . Overall, durability is not a concern for these bikes .
Who Is the 2025 Surron Ultra Bee For?
The 2025 Surron Ultra Bee is perfect for:
- Adult riders who find the Light Bee X too small
- Beginners wanting adjustable power delivery without a clutch or gears
- Experienced off-road riders seeking a quiet, low-maintenance play bike
- Property owners needing noise-friendly transportation
- Riders wanting the “Goldilocks” option—not too small, not too big
It may NOT be ideal for:
- Hardcore enduro riders needing 12 inches of suspension travel
- Long-distance adventurers requiring gas-and-go convenience
- Budget buyers under $5,000 (consider used Light Bee X or other options)
- Riders needing a street-legal machine (check local regulations)
Why Choose the 2025 Surron Ultra Bee?
In conclusion, the 2025 Surron Ultra Bee represents exceptional value at $6,499, offering major performance upgrades without a price increase . The 44% power increase makes the bike genuinely quick, while the new suspension improves comfort and control on rough terrain .
The 74V 60Ah battery delivers up to 60 miles of trail riding, and charging to 80% takes only 2.5 hours . The adjustable ride modes make the bike accessible to beginners while still challenging experienced riders in Sport or Turbo modes .
For anyone seeking a lightweight, quiet, low-maintenance electric dirt bike that fits full-sized adults, the 2025 Surron Ultra Bee HP is the best option in the Surron lineup . It’s the Goldilocks—just right.
For more electric motorcycle options, browse our Collection of Electric Dirt Bikes or read our E-Moto Buying Guide.
