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Qualibike DOLPHIN Foldable Electric Bike

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Introducing Qualibike’s Dolphin: a powerful, long-range, and foldable electric bike. The Dolphin features a 14Ah Samsung battery, hidden in the seat post battery system, which is long-lasting, efficient, and encased with full battery-cell protection sleeve. This e-bike will allow you to ride more than 50 miles with the pedal-assist mode and 30 miles range on the throttle mode in a single charge. Its rear mounted 350W brushless geared motor has been recently re-engineered, in order to achieve a more powerful and efficient motor that will endure a longer lifespan.

The Dolphin electric bike folds to a compact size to easily fit in a car trunk or under a desk. It can conveniently fold down into 32.6 x18.9 x 27.5 inch, which means it can be easily stored in tight out of the way places in your home, under your work desk, or on public transport. Additionally, weighing only 23kg, the Dolphin is a fantastic portable e-bike for urban commuters or students looking for a faster and more cost-efficient way of getting around.


    Easy Fold & Go

    Qualisports folding structure makes the folding size only 830*480*700mm, weighing only 50lbs.

    It can easily fit in the back of an SUV, in the trunk of a car, RV, and easily folds for ease of transportation.

    Bigger Battery

    The Dolphin features a 14Ah Samsung battery, hidden in our patented seat post battery system that lasts longer, is more efficient, and encased with full battery-cell protection sleeve. This e-bike will allow Qualibikers to ride between 50-60 miles of utilizing the PAS (Pedal Assist) mode and 30 miles range on the throttle mode in a single charge.

    The intergraded customized BMS system protects the battery from overcharging, overheating, stabilizes, and regulates the current output.

    Smoother Riding

    The Re-programmed FOC controller offers Quali-bikers a more enjoyable and comfortable riding experience.

    This is accomplished by the integration of our components mentioned above to provide a smoother fluid motor engagement.

    Stronger Motor

    The rear mounted 350W brushless geared motor has been re-engineered from inside and out. New material was utilized in the gears producing a stronger magnetic field is applied inside the motor which achieves a more powerful and efficient motor that will endure a longer lifespan.

    Stronger Frame

    The Dolphin has been crafted and tested under our strict guidelines and procedures. The frame is made of 6061 Aluminum which is an industry standard known for its lightweight and strength, allowing our bikes to appeal and support heavier cyclists.


    Qualisports DOLPHIN Specifications

    • Product name: Dolphin
    • Model name: QSEB 03
    • Size:62.9*23.3*44.1inch
    • Folding Size: 32.6*18.9*27.5inch
    • Wheelbase:43.5inch
    • Net weight: 50lbs
    • Range: 62.5Miles(PAS)
    • load: 300lbs
    • speed: 20MPH
    • Charging time: 6~7 Hrs
    • Battery type: Samsung Lithium-ion
    • Battery capacity: 36V 14Ah
    • Noise : ≤ 62 dB(A)
    • Motor: MXUS Brushless geared DC motor
    • Rated output power: 350W
    • Motor efficiency: ≥85%
    • Rated RPM: 310±10r/min
    • Rated voltage: 48V
    • Max torque: 40N.m
    • Overcurrent protection: 15±1A
    • Low-voltage protection: 30±1V
    • Modes: 5 levels
    • Tire diameter: 20x2.35 Inch
    • Frame: 20 inch 6061 Al-Alloy Foldable
    • Front fork: 20 inch 6061 Al-Alloy
    • Brakes: 160mm disc brakes
    • Rim: 20 inch Al-Alloy 12G36H
    • Tire: 35"
    • Chain wheel: Prowheel 52T
    • Freewheel: Shimano 14-28T
    • Derailleur: Shimano 7 speed
    • Chain: KMC
    • Handlebar: Promax
    • Display: Kunteng LCD
    • Controller: Kunteng sine wave FOC
    • Brake levers: Al-Alloy e-bike lever
    • Saddle: KNUS
    • Pedal: Foldable Pedals
    We offer the best prices online and we are willing to back it up! If you find another online store that offers a lower price within three months of your purchase we will refund the difference. We never want you to feel you're getting a bad deal so we will make sure you always get the best deal possible. If you find that our own website has a lower price for the same item you have ordered within three months of your purchase date will refund the difference as well.

    To request your price match simply e-mail us a link to the same product on our website, or on our competitors website within three months from the date of your order and we will process the credit accordingly.

    Our 100% Price Guarantee has some limitations:

    • You must purchase the item from our website before requesting your Price Match Guarantee.
    • Promotions such as rebates and buy one, get one free offers are not eligible.
    • The item must be in stock on the competitors website. No backorders.
    • The competitor must be an online store, they may not have a retail location
    • The website can not be a discounter or auction website. (ie; eBay, overstock, etc.)
    • The competitor must be an Authorized Retailer of the product in question.
    • The Price Match Guarantee includes the item price and the shipping charges, it excludes sales tax.

    Qualisports bike frames and forks are warranted by manufacture to be free from defects in materials and workmanship. 

    This includes a 5 years warranty on frame and fork.

    Battery warranty: All Qualisports E-bike batteries come with a 2 years warranty (Battery cycle lifetime is between 600 - 800 cycles depends on the environment conditions) Qualisports will replace the battery if it fails within two years (as long as it was not damaged by personal neglect).

    Customer Reviews

    Based on 3 reviews
    Marcia Hirst
    Great RV Bike and Nice Nemo

    Great for RV life! Love the ease of folding which allows us to put in back of the truck as opposed to having a bike rack on the rear of the RV. Took about 45 minutes to assemble.
    I must say their customer service is prompt, professional, and helpful.

    Just over overall cool product

    I think for what it is, it's one of the coolest things I've ever bought. it's versatile and can do the distance but honestly really shines the most as a super-versatile bike that can deal with heavy city traffic. I live in a congested traffic city and this is really the perfect option for any big event that requires heavy parking fees and/or totally gridlocked traffic. I often park a reasonable distance away and just take a short bike ride into events. it's also small enough that if you want to pop up on a sidewalk to avoid idiot American drivers who still somehow have a fast and furious mentality, regardless of human life around them, you can do so without really pissing anyone off because it honestly just looks like a cool BMX bike.. (somehow no one cares what skaters do lol) The battery life is solid. I took it to workout and get groceries - about 6 miles in all and then all the way downtown to work and back (and my coworkers couldn't stop joyriding it during my time there).. so yeah about 13 miles in all give or take depending on alt routes and extra bs I prob did.

    Lizzie Rodriquez
    My Dolphin

    The bike came earlier than expected, how great was that! Assembly was very easy and it was up and ready to ride in about 10 minutes. The bike took no time to get used to and I'm riding it 3 times a week to my gym. I live in Brooklyn-NY where it's very difficult a car, so I use the bike for local errands. It's great.



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