RadMini Step-Thru 2 Electric Folding Fat Bike

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The new RadMini Step-Thru 2 encompasses so much of our design philosophy: to make bikes that combine power with ease, convenience, and accessibility.


The RadMini Step-Thru 2 is also called by Rad Power Bikes as “The Rugged Space Saver”. The reason behind it is simple. This is an electric folding fat bike that gets the title as the Best Electronic Bikes in seven categories for 2020 by EBR. It encompasses so many design philosophies of Rad Power Bikes. It’s also been upgraded to have more comfortable handlebars that can be adjusted as well as streamline throttle design. The folding mechanism is also the most exceptional feature Rad Power Bikes has ever made. It’s the perfect electric folding fat bike for those who don’t have enough space in their storage or garage.

Features of RadMini Step-Thru 2

  • Low Step Frame: This has the lowest standover height from other models which is only at 16 inches. It’s great for those riders who need to have a more approachable e-bike that they can ride.
  • Strongest Hinge: Purposely overbuilt to ensure the safety of the rider. The folding hinge has multiple redundancies to avoid unlatching accidentally. It’s the strongest hinge ever made for a folding e-bike to ensure safety.
  • Front Suspension Fork: It gives 60 mm of travel, preload adjustment, and lockout. Lessen your worries about having riding accidents. Thanks to the stability and reliable suspension fork of this electric fat bike.
  • Twist Grip Throttle: Easily start your engine without any failure since it has 750W of power. Ride on-demand without the need for the motor to warm up. It’s the advantage of having an electric bike compared to driving a motorcycle.
  • Integrated Brake Light: No need for additional batteries for the brake light since it’s already powered with the main battery every time brake is applied to it. The brake light is important to be responsive when you hit the brake to avoid accidents from happening.
  • Sidewall Stripping: It has an extremely durable and larger reflective surface to achieve better visibility compared to the regular bike reflectors.
  • 7 Speed Freewheel: Maintain pedal authority at top speed even if you’re climbing steep hills and mountains. It has a wider range of gearing so that to ensure that the rider can also go fast even in rough and steep terrains.
  • Puncture Resistant Tires: No more worrying about getting flat tires since this electric fat bike come with puncture-resistant tires. It has an added layer of protection to avoid the tires getting damaged by road debris that can be harmful to a regular tire.

Specification: RadMini Step-Thru 2 Electric Folding Fat Bike


Rad Power Bikes


48V, 14 Ah (672 Wh) with Lithium NMC Samsung 35E cells, rated for 800 charge cycles


48V, 2 Amp Rad Power Bikes smart charger, operates on both 110V and 230V AC power outlets


48V, 750W


Backlit LCD with charge indicator, speedometer, odometer, trip odometer, pedal assist level, wattmeter, and more

Hub Motor

750W brushless Bafang geared hub motor with 80 Nm of torque, 5:1 planetary gear reduction


Front: Standard Rad Power Bikes LED headlight Rear: Integrated taillight with brake light

Pedal assist

Intelligent 5 level pedal assist with 12 magnet cadence sensor


Half twist throttle


Water resistant connectors and wiring harness

USB ports

Display: 5V, 1 Amp

Brake Calipers

Tektro Aries (MD-M300)

Brake Levers

Aluminum alloy comfort grip levers with motor cutoff switch and integrated bell

Brake pad material

Sintered metal




48T, 170 mm ProWheel Pioneer forged alloy, dual-sided aluminum bashguard


7-Speed Shimano Altus


Front and rear


RST spring fork with lockout and preload adjustment, 60 mm travel, 135 mm hub width, 9 mm quick release


6061 aluminum


DNP 7-speed freewheel, 11-34T


1 x 7-speed


Durable Imitation Leather Ergonomic Grips


Custom formed aluminum, 26" wide, 2.5" rise


Semi-integrated, 1-1/8" straight steerer tube


Heavy-duty aluminum with wide plastic foot


Wellgo P256 CrMo axle, forged aluminum folding platform with reflectors, standard 9/16" x 20 TPI threading




Double wall, 36H


Velo Plush with lifting handle


Promax, 350 mm x 27.2 mm

Seatpost clamp

Quick release


Shimano SL-TX50-7R thumb shifter, 7-speed


12 gauge, stainless steel


High-rise folding stem with 3" vertical adjustment


Rad Power Bikes by Kenda K-Rad 20" x 3.3", K-Shield puncture-resistant liner


Up to 45+ Miles per Charge (estimate)

Max. Speed

20 mph

Charging time

6 hours

Videos: RadMini Step-Thru 2 Electric Folding Fat Bike

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