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2019 Qualisports

Dolphin

A 20″ aluminum frame folding e-bike with modest components and jak mechanical disc brakes.

Manufacturer Price

$1,299
Weight47.7 lbs  
FrameAluminum
SuspensionRigid
ForkAluminum
Wheels20″ Aluminum
Drivetrain1 × 7
GroupsetShimano
Motor350W 40Nm hub-drive
Battery504Wh
BrakesJAK Mechanical Disc
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Insights
Gearing

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

22 mph

Similar Bikes

Highest gear

(descending)

Sizing
11"

3'11" +

🐐 Estimated

Rider Fit Notes

None yet.

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Reviews
Electric Bike Review
Qualisports Dolphin Review - Prices, Specs, Videos, Photos

Sep 2019

Price: $1299.00 | Model Year: 2019 An affordable and sleek folding bike that hides its electric system in the frame and seat post, MXUS hub-drive, 36v 14ah battery, 7 speed Shimano cassette, thicker tires, and mechanical brakes with motor inhibitors. The bike folds well, you can walk it when folded or even slide the seat post down through the frame to use it similar to a chair, allowing you to sit on the saddle of the bike while it is folded in a stable manner. An affordable and sleek folding bike that hides its electric system in the frame and seat post, MXUS hub-drive, 36v 14ah battery, 7 speed Shimano cassette, thicker tires, and mechanical brakes with motor inhibitors.

Observations
  • An affordable and sleek folding bike that hides its electric system in the frame and seat post, MXUS hub-drive, 36v 14ah battery, 7 speed Shimano cassette, thicker tires, and mechanical brakes with motor inhibitors

  • The bike folds well, you can walk it when folded or even slide the seat post down through the frame to use it similar to a chair, allowing you to sit on the saddle of the bike while it is folded in a stable manner

  • For $1,299, there is a lot to appreciate like the integrated headlight, but you can take it to the next level with optional features such as bags, a rear rack, or a front basket

  • There is no suspension of any kind on the bike, the smaller wheel diameter has a higher attack angle too, so you really feel the bumps of the road, definitely best in short trips rather than long hauls

Read Review

Specs
Build
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

Promax, Flat, Aluminum Alloy, 590mm Length

Saddle

KNUS, Active

Seatpost

Custom, Alloy (Contains the Battery)

TypeRigid

Pedals

Generic Plastic Platform, Folding

Grips

Velo, Rubber, Ergonomic, Non-Locking

Groupset
Crank

Prowheel Forged Alloy, 170mm 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 Cassette

Brakes

Wuxing Mechanical Disc Brakes with JAK 160mm Rotors and Calipers, Four Finger Levers with Motor Inhibitors

TypeJAK Mechanical Disc

Wheels
Rims

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

Spokes

Stainless Steel, 13 Gauge, Black with Silver Nipples

Tires

COMPASS, 20" x 2.35"

Electric Components
Motor

Weight: 6 lbs (2.72 kg), Brand: MXUS, Type: Rear-Mounted Geared Hub, Nominal Output: 350 watts, Torque: 40 Newton meters

Battery

Weight: 7.5 lbs (3.4 kg) (8.1lbs with Saddle), Brand: Samsung 18650 35E, Voltage: 36 volts, Amp Hours: 14 ah, Watt Hours: 504 wh, Chemistry: Lithium-ion

Display

Kunteng, Fixed, Backlit Grayscale LCD, Buttons: Up, Power, Down (Hold Up for Backlight and Headlight, Hold Down for Walk Mode, Hold Up and Down for Settings, Hold Down while Riding to Set Cruise Control)

Rider Notes
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First added September 3

Last updated September 3

Not listed for 1,369 days