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    MSRP
    $1,899
    Where to Buy
    $1

    At

    Category
    Folding, E-Bike
    Weight
    51.0 lbs
    Frame
    Aluminum
    Aluminum
    Wheels
    Aluminum
    Wheel Size
    20″
    Hydraulic Disc
    500W 40Nm hub-drive
    840Wh
    Shimano
    Drivetrain
    1 × 7
    Brand Site
    Summary
    The Qualisports Dolphin Plus is a 20″ aluminum frame folding e-bike with modest components and hydraulic disc brakes.

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    Insights
    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)

    22 mph

    Dolphin Plus

    Highest gear

    (descending)

    Geometry
    Specs
    Frame

    6061 Aluminum Alloy

    Fork

    Rigid 6061 Aluminum Alloy, 100mm Hub Spacing, 9.5mm Threaded Axle with 15mm Nuts

    Headset

    Custom, Internal Cups, Straight 1-1/8"

    Stem

    Custom Aluminum Alloy, Folding, Telescoping Height, 290mm Base Height, 170mm Extension, Quick Release Clamp, 25.4mm Clamp Diameter

    Handlebar

    Flat, Aluminum Alloy, 620mm Length

    Saddle

    KNUS, Active

    Seatpost

    Custom, Alloy (Contains the Battery)

    TypeRigid

    Pedals

    Generic Plastic Platform, Folding

    Grips

    Rubber, Ergonomic, Locking

    Groupset
    Crank

    Prowheel Forged Alloy, 165mm Length, 52 Tooth Chainring with Plastic Guard

    Shifters

    Shimano Triggers on Right (One-Way High Lever, 3-Shift Low Lever)

    Cassette

    7 Speed 1x7 Shimano Tourney Derailleur, MF-TZ500-7 14-28 Tooth Freewheel

    Brakes

    Hydraulic Disc Brakes with 160mm Rotors, Dual Piston Calipers, Three Finger Levers with Adjustable Reach and Motor Inhibitors

    TypeHydraulic Disc

    Wheels
    Rims

    Aluminum Alloy, Double Wall, Machined Sidewalls, 32mm Outer Width, 36 Hole

    Spokes

    Stainless Steel, 13 Gauge, Black with Silver Nipples

    Tires

    Innova, 20" x 2.3" 58-406

    Electric Components
    Motor

    Weight: 9 lbs (4.08 kg), Brand: Qualisports Branded, Type: Rear-Mounted Geared Hub, Nominal Output: 500 watts, Torque: 40 Newton meters

    Battery

    Weight: 7.5 lbs (3.4 kg) (8.1lbs with Saddle, Downtube Battery is 4lbs), Brand: Samsung 18650 Cells, Voltage: 48 volts, Amp Hours: 17.5 ah (10.5ah Seat Tube Battery, 7ah Downtube Battery), Watt Hours: 840 wh (504wh Seat Tube Battery, 336wh Downtube Battery), Chemistry: Lithium-ion

    Display

    Fixed Grayscale LCD 2.25" Diagonal, Buttons: Up, Power, Down, Headlight and Backlight: Hold Up Arrow, Walk Mode: Hold Down Arrow, Cruise Control: Hold Down Arrow and to Set While Riding, Settings: Hold Up and Down Arrows

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