ECOTRIC BIKES UL Certified-Ecotric 20″ White Portable and Folding Fat Bike Model Dolphin

Foldable Power That Fits Your Life

Restaurant-grade performance — sear at 1,000°F+ with infrared burners
304 stainless steel construction — rust-resistant, built to last decades
Ships fully assembled — wheel it out, fire it up same day
10-year warranty standard — industry-leading coverage on all burners

$939.99

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ECOTRIC BIKES UL Certified-Ecotric 20" White Portable and Folding Fat Bike Model Dolphin
$939.99

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ECOTRIC BIKES UL Certified-Ecotric 20″ White Portable and Folding Fat Bike Model Dolphin
$939.99

Foldable Power That Fits Your Life

This UL-certified folding fat bike is a vetted addition to any garage. The 500W motor and 20-inch fat tires handle snow, sand, and pavement with equal confidence, while the foldable frame and removable battery make storage effortless. We curated this model for riders who want serious range—up to 48 miles in pedal assist—without sacrificing portability. It's an investment in daily mobility that earns its place every time you unfold it.

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UL Certified Safety
500W Geared Motor
Foldable Frame
Removable Battery
500W
Rear Hub Motor
45-48 mi
Pedal Assist Range
12.5AH
Lithium Battery

Fits Your Space

The Dolphin folds at the upper tube and handlebar, making it adaptable to compact storage situations most full-size e-bikes can't manage.

  • 20×4.0 fat tires fit standard fat bike racks and carriers
  • Removable 36V battery charges at any standard household outlet
  • Foldable frame stores in car trunks, closets, or RV compartments

Built For

From daily commutes to weekend trail rides, the Dolphin handles terrain that stops standard e-bikes cold.

Pavement Commuting
Snow & Sand Riding
RV & Camper Travel
Apartment Storage

Full specifications

At a glance

Compliance
UL Certified
Full specifications19 data points across 4 categories

Dimensions

Tire20" * 4.0 Anti-skidding,adapt to snow, sand and other complex topography
Inner tube20×4.0/4.9
Valve stemAmerican standard size

Power & Performance

MotorRear Hub 36V 500W
Battery36V 12.5AH
Charging Time6-8 Hours
DisplayEcotric M3 LCD display
SensorSpeed Sensor
Battery Life400-600 Cycles
FunctionsPedal Assist On-Demand Throttle
Speed25KM/H (According to the laws of the United States, we set the maximum speed at 25km/h, which can be adjusted according to the specific conditions of each state.)

Materials

FrameAluminum Alloy
Front BrakeMechanical Disc 160mm Rotor
Rear BrakeMechanical Disc 160mm Rotor
Derailleur7Speed SHIMANO
Tires20×4.0' Fat Tires
FendersIncluded, Front And Rear
Brake SystemLeft Brake For Rear/Right Brake For Front

Compliance & Warranty

CertificationUL Certified

The Volt Trek Promise

Every product on Volt Trek earns its spot. If the Dolphin doesn't meet your expectations, we make it right.

Free ShippingShips free to your door — no hidden freight charges.
30-Day ReturnsInvest once — if it's not right, send it back on us.
Expert ConsultationTalk to a real e-bike expert before you buy — phone, chat, or email.

ECOTRIC BIKES UL Certified-Ecotric 20″ White Portable and Folding Fat Bike Model Dolphin

Look at the fat tires and the perfect curves. It is just like dolphins, which are chubby and cute but flexible. It has a 500W power motor, a 12.5AH high-capacity lithium battery, and its upper tube and handlebar are foldable. In addition, fat 20-inch tires provide good shock absorption. All this means this is a portable e-bike that you can ride for a long time on any road. And I couldn’t come up with any other better options.

Why do I choose ECOTRIC UL certified ebikes?

UL has been around for 125 years ensuring the safety and accountability of electrical products in everyday American life. Being UL certified illustrates a businesses’ dedication to consumer safety, as well as the quality of their products. Another important caveat of UL certification is for insurance purposes and customer security. It’s a true indication of an item’s safety and longevity.

FEATURES:

500W Gear Motor

  • 500 Watt brushless geared motor
  • Tire: 20″ * 4.0 Anti-skidding,adapt to snow, sand and other complex topography
  • Inner tube: 20×4.0/4.9
  • Valve stem: American standard size
  • attached: valve cap

2 upgrade points

C-NDOL20LED-WB,This upgrade has the following 2 points

  • 810 Led display is upgraded to M3 meter (meter plus headlight switch function)
  • healamp

36V/12.5AH Removable Lithium Battery

  • 36V/12.5AH Removable Lithium Battery,so you can bring the battery to your home or office to recharge.Travel range 18-23 miles in pure electric mode and 45-48 miles in pedal mode.
  • Charging time: Appro 6-8 hours
  • Battery life Up To 400-600 Cycles.
  • Battery lock and power lock function

Disc Brake

  • Outage braking system and Mechanical braking system,work along both lines, provide security for your trip.
  • 7 Speed system
  • Come with pedal assist and walk assist model

Aluminum Alloy Frame

  • 20 “ALLOY;
  • Head tube 50 * 50 * 120L.
  • The pipe heterotypic 27.4 * 2.2 T * 420L Reaming 27.4;
  • Equipped with rear motor;Standard disc brake seat

Foldable & Portable

  • Put it in the trunk.
  • Take it to the elevator.
  • Take it to the subway.

GENERAL FEATURES:

MODEL SIZE 1780*620*1120mm
WEIGHT CAPACITY
200lbs
WEIGHT WITH BATTERY
55lb

SPECIFICATIONS:

BATTERY
36V 12.5AH
MOTOR
Rear Hub 36V 500W
CHARGING TIME
6-8 Hours
DISPLAY 
Ecotric M3 LCD display
SENSOR 
Speed Sensor 
BATTERY LIFE
400-600 Cycles
FUNCTIONS Pedal Assist On-Demand Throttle
SPEED 25KM/H (According to the laws of the United States, we set the maximum speed at 25km/h, which can be adjusted according to the specific conditions of each state.)

COMPONENTS:

FRONT BRAKE  Mechanical Disc 160mm Rotor
REAR BRAKE  Mechanical Disc 160mm Rotor
DERAILLEUR 7Speed SHIMANO
FRAME  Aluminum Alloy
TIRES 20×4.0′ Fat Tires 
FENDERS Included, Front And Rear
BRAKE SYSTEM Left Brake For Rear/Right Brake For Front

PACKING LIST:

  • 1 x UL Certified-Ecotric 20inch white portable and folding fat bike model Dolphin
  • 1 x Lithium-Ion Battery
  • 1 x Kit Box
  • 2 x Pedals
  • 1 x Display
  • 2 x Keys
  • 1 x Tool Kit
  • 2 x Reflectors
  • 1 x Owner’s User Manual

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