SURRON ULTRA BEE HP 2025 (21 kW)

2025 SURRON ULTRA BEE HP 21KW ELECTRIC DIRT BIKE
Surron Ultra Bee HP 2025 21 KW
is the latest evolution of Surron’s high-performance electric dual-sport platform, now fully ADR-approved. The
Surron Ultra Bee  – Electric Dirt Bike
– the world’s most favorite electric bike brand has done it again with this outstanding new model! The Ultra offers the answer to everyone’s prayers – more power, overall
size
increase and low weight plus some excellent new innovations!
Since the brand was introduction in 2016 it now boasts a suave global reputation and means fierce business and serious competition! It’s not hard to see why this world wide phenomenon is taking on the likes of the conventional petrol bikes fiercely – but take note this is by no means a street legal bicycle, this is strictly a private property use dirt bike.
Take to the trails with the
Ultra Bee
,
which comes as standard with a
21KW Peak Output
which will lay down a whopping
511nm
and achieve up to 95km/h with ease! Plus with some excellent innovations such as the built in charger storage compartment under the seat, traction control and much more! The Ultra makes for the perfect outdoor expedition, trail bike, farm bike or the weekend recreational rider, which with this said is an ideal bike for almost all ages.
Conquer all trails and more with ease on the
Surron Ultra Dirt Bike
with
4 Piston Brakes,
a Removable and Swappable
60AH Battery
with premium and a seriously lightweight Aluminium construction, this is a bike that is incredibly robust but also charges in record time with the included
Fast Charger
of 4hrs!
2025 Ultra bee HP
Surron Ultra Bee HP 2025 Key Features:
74V – 60AH Lithium Battery
Range of 140km (Cruising @40km/h)
21KW Motor with 511Nm of Torque
Top Speed 95km/h
New and Improved Fork
Under seat charger storage
New Features & Improvements
Turbo Button
: Unleashes full 21kW peak power
Crawling Function
: Fine control for technical off-road terrain
Upgraded Battery
: 74V60Ah for extended range and punch
Advanced MTPA/MTPV Controller
: Smarter power delivery
Hairpin Motor
: Improved efficiency & rapid heat dissipation
0–59mph Top Speed
: Lightweight but ferocious
New Suspension System
:
50% stronger gold fork with uniform wall thickness
Upgraded damping and hydraulic buffers for 30% better impact resistance
Primary Drive Overhaul
:
Carbon fiber belt + forged pulleys
Tungsten carbide pulley surfaces with 3x wear resistance
Range & Charging
Range
: 70 miles (at a reduced speed)
Charge Time
: 20% to 80% in just 2.5 hours
Design & Aesthetic Enhancements
Sleek new
sand-gold body color or Carbon Black
Gold-accented front fork and guard plate decals
New custom 18″ rear wheel set
Slight weight increase (up 8 lbs) for added durability and power delivery
Available in
Carbon Black
or
Desert Brown
Ride Modes
Eco / Daily / Sport / Reverse / Turbo
Plus 3-level adjustable crawling control
Specs
Motor
: PMSM w/ MTPA/MTPV Controller
Max Power
: 21kW (Turbo) / 18kW (Sports)
Max Torque (on wheel)
: 376.9 ft-lbs
Battery
: 74V / 60Ah Lithium-ion
Top Speed
: 59mph
Seat Height
: 35.8 in
Ground Clearance
: 12.4 in
Wheelbase
: 54.3 in
Frame
: Forged aluminum alloy
Front Tire
: 80/100-19 Off-Road
Rear Tire
: 100/90-18 Off-Road
Front Fork Travel
: 9.4 in
Rear Shock Travel
: 3.3 in (Wheel Travel: 9.4 in)
Throttle Curve
: Three settings
Rider Weight Capacity
: 220 lbs
Weight
: 195 lbs (dry)
Smart Features
SRTC + BERS assist systems
Instructions: Settings and ASR Setup
1. Power On and Enter Settings Mode
With the kickstand down, power on the bike.
Hold the
Ready
and
ASR
buttons (front-facing buttons on the right and left grips) for 3 seconds until the display shows a letter
B
and a number.
2. Navigating Settings
Tap ASR
to move to the next setting.
Tap Ready
to change the setting value.
3. Settings Overview
BO B5
: Brake regeneration (activates when battery is under 95% in Sport mode)
EO E5
: Engine coasting regeneration
A1 A3
: Anti-Slip traction control (ASR)
PO P1
: Pause throttle when brake is applied
8 C1
: Crash cutoff (C1 disables motor if bike tilts too far)
F1 F3
: Throttle sensitivity in Sport mode
TO T1
: Testing mode (records diagnostics)
U1 U3
: Charging speed control for utility power
How to Set Up ASR (Anti-Slip Traction Control)
1. Activating ASR
To enable ASR for steep slopes or slippery conditions, press the
ASR button three times
in a row.
The ASR light will turn
green
to indicate it’s active.
2. ASR Strength Levels
The right-side instrument shows ASR strength:
One bar
: Lightest assistance (still allows short wheelies)
Three bars
: Maximum traction control
3. Adjusting ASR While Riding
To toggle ASR on/off while riding: press the
ASR button three times
.
To adjust strength while riding:
hold ASR
and then
double-click the reverse (r & s) button
.
These instructions help you get the most out of your Ultra Bee’s advanced electronic systems and traction control.
Every PEV purchase includes a standard charger in the box. We also have fast chargers available for purchase.