Bike Comparison
    MSRP
    $1,499
    $1,499
    Where to Buy
    $1

    At

    $1

    At

    Category
    Folding, E-BikeFolding, E-Bike
    Weight
    67.0 lbs69.0 lbs
    AluminumAluminum
    Wheels
    AluminumAluminum
    Wheel Size
    20″20″
    Brakes
    Mechanical DiscMechanical Disc
    Bafang 750W 80Nm hub-driveBafang 750W 80Nm hub-drive
    672Wh672Wh
    Groupset
    Altus, TourneyAltus, Tourney
    Drivetrain
    1 × 71 × 7
    Suspension
    HardtailHardtail
    Front Travel
    80mm80mm
    Brand Site

    radpowerbikes.com

    radpowerbikes.com

    Summary
    The Rad Power Bikes RadMini 4 and Rad Power Bikes RadMini Step-Thru 2 are both 20″ aluminum frame folding e-bikes with modest components and mechanical disc brakes.
    Similar Bikes
    Accessories
    Gear Range

    A bike with lower gearing will be easier to ride up steep hills, while a higher top end means it will pedal faster down hills.

    Lowest gear

    (climbing)

    26 mph

    RadMini 4

    26 mph

    RadMini Step-Thru 2

    Highest gear

    (descending)

    Geometry
    Specs
    Frame

    6061 aluminum

    Tire Clearance4"

    6061 aluminum

    Tire Clearance4"

    Fork

    RST spring fork, 80 mm travel, with lockout and preload adjustment

    Travel80mm

    Spring TypeCoil

    RST spring fork, 80 mm travel, with lockout and preload adjustment

    Travel80mm

    Spring TypeCoil

    Bottom Bracket

    100 mmSquare Taper Bottom Bracket

    100 mmSquare Taper Bottom Bracket

    Headset

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

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

    Stem

    High-rise folding stem with 3" vertical adjustment

    High-rise folding stem with 3" vertical adjustment

    Handlebar

    Custom formed aluminum, 26" wide, 2.5" rise

    Custom formed aluminum, 26" wide, 2.5" rise

    Saddle

    Velo Plush with lifting handle

    Velo Plush with lifting handle

    Seatpost

    Promax, 350 mm x 27.2 mm

    Promax, 350 mm x 27.2 mm

    Pedals

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

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

    Grips

    Durable imitation leather ergo

    Durable imitation leather ergonomic grips

    Groupset
    Rear Derailleur

    7-Speed Shimano Altus

    7-Speed Shimano Altus

    Crank

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

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

    Shifters

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

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

    Cassette

    DNP 7-speed freewheel, 11-34T

    DNP 7-speed freewheel, 11-34T

    Chain

    KMC Z7

    KMC Z7

    Brakes

    Tektro Aries (MD-M300)

    Tektro Aries (MD-M300)

    Brake Levers

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

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

    Wheels
    Rims

    Double wall, 36H

    Double wall, 36H

    Spokes

    12-gauge stainless steel, black

    12-gauge stainless steel, black

    Tires

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

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

    Disc Rotors

    Tektro 180 mm front and rear

    Tektro 180 mm front and rear

    Electric Components
    Motor

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

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

    Battery

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

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

    Display

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

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

    Charger

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

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

    Accessories
    Lights

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

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

    Fenders

    Full coverage front and rear

    Front and rear

    Racks

    Optional

    Optional

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