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The 2nd enhanced version of the J20 FATBIKE was designed to offer you the absolute riding experience. Bafang motor, Samsung battery, Kenda tires are only some of the branded components that configure a high end powerful e-bike, while small details such as integrated tail light featuring stop lights add value to your safety. You just need to... redefine your ride!


Rear Hub Motor

48V, 10.4Ah

Lithium-Ion Battery


Km per charge (estimate)


Payload Capacity

Product Availability: Out of Stock

Available in July 2020
1490,00 €


Folding Frame

Folding Frame

In the car, the boat or public transport. Functionality and free commuting in 3 quick n’ easy folding steps.

Control Panel

KD718 TFT screen 48V display. IP65 waterproof, color screen, light sensor and great graphics are some of its features. Configurable for various personalized settings.

Folding Frame

Hidden Powerful Battery

48V, 10.4 Ah by Samsung 18650 cells is what you need to leave "charging stress" behind.

Anti-theft ON/OFF switch with two keys. Charge it On or Off the bike.

250W Bafang Motor

Bafang equals quality motors. 45Nm of torque ensure that no steep hill can stop you.

Integrated Horn Button and Lights Switch

Single-handed operation at a fingertip’s reach. Increased visibility with front light powered by the battery.

Mobile Phone Holder

Capture your experiences, open your favorite apps or answer your calls. Do not let battery levels ruin all the fun. Charge your phone in the integrated USB port powered by the battery.

Integrated Rear Rack

Attach your panniers, basket or suitcase on the 400*80mm rear rack and transform your bike into a cargo bike.

Aurelia is a family business. Attach your child seat on the rear rack and enjoy family moments!

Folding Frame

Front Suspension Fork

Adjust the Suntour XCT SF16 front suspension fork at your own will and transform the horizon into a straight line.

Adjustable Handlebars Height

More laid back riding position. From 120cm to 130cm, choose the most comfy position.. and define your ride!

Single Leg Kickstand

Park the bike in no time. With the powerful kickstand you can put the kid onto the child seat safely.

Half Twist Grip Throttle

250W of Bafang power on demand. Just like that.

Kenda Puncture Resistant Tires

Kenda brand is synonymous to anti-puncture technology. 20 * 4’’ fat tires can conquer all terrains without fun-spoiling thoughts or obstacles.

Recommended rider heights: 150cm – 195cm (4’12’’ – 6’2’’)

Frame size: 16,5”

Handlebar height: Min 120cm – Max 130cm (Min 47’’ – Max 51”)

Stem height: 29cm (11.4”)

Handlebar Reach: 40cm (16”)

Seat Height: Min 67cm – Max 97cm (Min 26” – Max 38”)*

*Measure from the bottom of the pedal stroke

Stand over height: 70cm (27.5”)

Total length: 160cm (63”)

Wheel base: 113cm (44”)

Dropout Width

Front: 130mm

Rear: 160mm

Bottom Bracket Shell Width: 100mm

Seat tube length: 42cm (16.5”)

Top tube length: 56cm (22”)

Folding part: 40cm (16”)

Stable: 10cm (6”)

Head tube: 13cm (5”)

Chain stay: 40cm (15.7”)

Handlebar width: 63cm (24.8”)

Crank Length: 170mm

Seat post diameter: 30mm

Tire width: 10,16 cm (4”)

Bike weight: 29kgs (64lbs)

Payload capacity: 135kgs (300lbs)

Rear rack

Length: 40cm (15.7”)

Width: 8cm (3.1”)


Hidden in frame & removable Li ion 48V/10.4Ah (499Wh) 18650 Samsung cells

180 – 240V, 3.0A smart charger

48V/250W waterproof, plug'n'play wiring system

Hub Motor
250W Bafang rear hub motor with 45 Nm of torque

Integrated horn with button on the right grip

Front: Integrated LED headlight

Rear: Integrated LED taillight with brake light

48V UART communication, IP65 waterproof, with TFT color screen and light sensor.

Display Functions (user manual provided)

  • Smart Battery level indicator
  • Motor output indicator
  • Pedal Assist Level indicator
  • Running speed, max. speed, average speed indicator
  • Trip distance, Total distance indicator
  • Error code indicator
  • Push assistance function to 6km/h
  • Various parameter settings such as assistance levels, max speed limitation, password enabled switch on etc.

Pedal Assist
By default 5 levels of Pedal Assist with low profile cadence sensor.

Up to 9 levels of Pedal Assist and/or PAS ratio customization ability.

35-50+ km per charge (estimate)

Half twist throttle

Top speed

USB Ports
Integrated USB port on mobile phone holder

Brake Calipers
Tektro MD-M280 with organic compound pads

Brake Levers
Tektro aluminum alloy comfort grip levers with motor cut-off switch

Brake Rotors
160mm front and rear

KMC Z7 anti-rust

Crank set
Prowheel chariot, 53T

Derailleur / Gearing
6 speed Shimano Tourney TZ

Front and rear aluminum alloy painted in frame color with stainless steel assembling axles

Suntour SF16 XCT DS aluminum alloy suspension fork

100% forged 6061 aluminum alloy, folding in 3 steps

Ergonomic / Durable rubber

Aluminum, quick release adjustable

Neco, semi-integrated

Wellgo composite platform with reflectors

Rear aluminum rack, high load capacity, 10mm external & 5mm internal tubing diameter.

Length: 40cm Width: 18cm

Double wall, 36H with anti-puncture nylon rim tape

Velo plush

Removable rear passenger saddle on the rack (sold seperately)

Seat post
Aluminum, 500 mm height * 31,8 mm wide with quick release clamp

Shimano 6 speed index plus shift lever

36 stainless steel, black

30mm folding, adjustable 230mm rise with quick release clamp

20” * 4’’ Kenda all terrain fat tires with Kenda inner tubes

Aurelia e-assist bikes


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