Qualisports Dolphin 48V10.5Ah500W 20x2.3" Folding Rear Hub Electric Bike

 Authorized Dealer

 ETA Early June

The Dolphin is a foldable electric bike with the same frame design as the Dolphin Plus. The Dolphin can be upgraded to the Dolphin Plus by purchasing an extra Tube Battery. The 10.5Ah battery is on the seat-post, and the upgrade 7Ah is on the horizontal tube.

As one of our most popular folding ebikes, the Dolphin has compact 20" wheels, and a folding frame that stores in seconds.

The smooth folding design allows the Dolphin to stow in a plane's cargo hold or back seat, offering reliable ground transportation and recreation.

The Dolphin has quality hydraulic brakes. With fluid in the master cylinder, hydraulic brakes have a much more efficient braking mechanism to force the brake pads together when the lever is pushed. Multiplying the amount of effort put into the lever makes it easier to brake.

The LCD display lets you easily see battery capacity, current speed, pedal assist level, and travel distance. It has a USB port for charging your phone.

Qualisports Dolphin Review - We read the reviews so you don’t have to.

Step-over electric bike, 48V 10.5Ah 500W, 25-60 mile range (40-80 Dolphin Plus), folding, all terrain, city, no suspension, 20" x2.3” tires, rear drive, hydraulic disk brakes, weight 48 lbs (53 Dolphin Plus), cargo 300 lbs, inseam 24-26 inch, rider 5’1” - 6’3”.

The following points have been compiled from various reviews. When you read a bike’s reviews, patterns can be seen.

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Important Specifications When Comparing Bikes

Maximum Capacity: 300 lbs.

Recommended Rider Height: 5'1" - 6'3"

Bike weight with battery: Dolphin (single battery): 48 lbs.; Dolphin Plus (dual battery) 53 lbs

Standover Height: 22.8"

Inseam: 24-26"

Battery: For Dolphin: 48V10.5Ah. For Dolphin Plus: 48V10.5Ah+48V7Ah

Motor: Qualisports 500W

Charging Time: Dolphin: 3-4Hrs.  Dolphin Plus 4-4.5Hrs

Sensor: Cadence sensor

Brakes: Front and rear hydraulic disk brakes

Tires: INNOVA 20" x 2.30" Tires

Range: Single-battery Dolphin: 25 - 60 miles battery only.
Dual-Battery Dolphin Plus: 40 - 80 miles battery only.
You can achieve over 60/80miles when cycling in pedal-assist mode.

Folded Size: 34.25*14.57*26.77 in
1.Max Handlebar Height：39.76 in
2.Min Handlebar Height：32.48 in
3.Standover Height：22.83 in
4.Max Saddle Height：39.76 in
5.Min Saddle Height：32.48 in
6.Wheelbase：41.73 in
7.Reach ：19.09 in
8.Width：23.62 in

Whats in the Box:

Front and rear fender
Kickstand
Battery and charger
Thumb throttle
Front and rear light
Tool bag

Specifications

Electrical

Battery Type
Samsung Lithium-ion Battery
Battery Capacity
Seat post battery 48V 10.5Ah; Tube battery: 48V 7AH
Charging Time
3-4Hrs/Dolphin;
4-4.5Hrs/Dolphin Plus
Display Brand
KT-7 LCD Display with USB Charging Port
Drive Mode
Cadence Sensing Pedal Assist/Trigger Throttle (12 Magnet Sealed Sensor)-Normal Biking-Cruise-Walk Assist 
Motor Brand
Qualisports USA Custom Manufactured 500W
Motor Torque
80 Newton meters

Components

Size
63.38'' x 22.83'' x 44.09''
Folded Size
33" x 16.5" x 28.5"
Net Weight
Dolphin: 48 lbs;  Dolphin Plus 53 lbs
Max. Load
300 lbs
Frame Type
Mid-Step, Folding
Saddle
KNUS, Active
Seat Post
Custom, 57mm, Alloy (Contains the Battery)
Brake Details
Custom 2 piston Hydraulic Brakes with power coutoff
Gearing Details
7 Speed 1x7 Shimano Tourney Derailleur, MF-TZ500-7 14-28 Tooth Cassette
Cranks
Prowheel Forged Alloy, 170mm Length, 52 Tooth Chainring with Plastic Guard
Tire Brand
INNOVA, 20" x 2.30"

To turn on/off the front headlight
Turn on the LCD display, then hold the display's UP button for 2-3 seconds. The headlight/LCD display background light will both be turned on. Hold the power button the same way to turn it off.  

Two reviews:

Unboxing Video

Warranty and Returns

We sourced Qualiebikes from reliable suppliers like Samsung, KT, Wuxing, Dahon supplier systems. So Qualibikes are pretty durable. If you have any problems, our warranty policy is as follows:

The manufacture warrants Qualisports bike frames and forks to be free from defects in materials and workmanship. 

This includes a five-year warranty on frame and fork.

Battery warranty: All Qualisports e-bike batteries come with a two-year warranty (Battery cycle lifetime is between 600 - 800 cycles depending on the environmental conditions). Qualisports will replace the battery if it fails within two years (as long as it was not damaged by personal neglect).

Consumables such as tires, tubes, saddles, grips, brake cables, pedals, and chains are not covered. 

All other components and add-ons such as racks will have a one-year warranty (Carry bags have no warranty). Please do note the limit load of racks is 25KG. 

PLEASE CHARGE YOUR BATTERY EVERY MONTH - IF NOT, IT VOIDS THE WARRANTY TERMS. WE WILL INSPECT EACH BATTERY TECHNICALLY.

Warranty is valid only in the Continental United States only.

THIS WARRANTY DOES NOT COVER: 
Normal wear and tear
Improper assembly
Improper follow-up maintenance
Installation of components, parts, or accessories not originally intended for or compatible with the bicycle as sold
Damage or failure due to accident, misuse, abuse, or neglect (such as the battery)

Do Not modify your bike casually. If something goes wrong, it's not covered by our warranty.

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ATTENTION:

Please send us the Pics or Videos to info@qualisports.us if your Quali-bike error occurred. Our support team will off advise you about the maintenance.