Five levels electric pedal assisted bike electric power bicycle electric sport bicycle

1-19 Pieces
20-86 Pieces
>=87 Pieces
Min. Order
1 Piece
Choose your specifications
Company Information

Changzhou Qualisports Technology Co., Ltd.

CN Manufacturer, Trading Company
Response Time
Response Rate:
US$ 510,000+
2 Years Paid Supplier Supplier Trade Assurance
Learn More

Quick Details

Port: Shanghai/Ningbo/Shenzhen
Payment Terms: L/C,D/A,D/P,T/T,Western Union,MoneyGram
Supply Ability: 98 Piece/Pieces per Day If all the parts are ready
Wattage: 251 - 350w
Voltage: 36V
Power Supply: Lithium Battery
Wheel Size: 20*2.35
Motor: Brushless
Certification: CE
Frame Material: Aluminum Alloy
Foldable: Yes
Max Speed: &lt;30km/h
Range per Power: &gt; 60 km
Place of Origin: Jiangsu China
Brand Name: Qualisports
Model Number: QSEB03
Size: 1680*590*1120mm
Folded size: 930*480*700mm
Net weight: 23kg
Battery: 36V 10.4Ah Lithium Battery
Frame: 20 Inch Aluminium Alloy Folding
Display: Kunteng Intelligent Display LCD
Controller: Kunteng Sine Wave FOC
Derailleur: Outer 7 Speed Shimano
Motor: 250/350w brushless geared motor
Brake lever: Wuxing Al-alloy e-bike lever
Packaging Detail: Standard Cartoon package: Box Dimension: 162*76*29cm Gross Weight: 33kg Volume(CBM) per piece: 0.36 CBM 20&#39; GP Container: 87 pcs 40&#39; HC Container: 204pcs
Product Description

About Model Q3

The Model Q3 is our new design 20 inch wide tire folding electric bike with double capacity of Model Q2. Which means you can ride to a farther destination per charge. It only weights 23 kg and can be effortlessly folded down to 830*460*700mm compact size. It features 20*2.35" COMPASS wide tire which makes your journey more smoothly, and a Shimano outer 7 speed gears shifting in addition to an electronic 5 levers shifting capability.


To make Qualibike neat and unique, we created seat-post lithium battery as our power system. Most people won't recognize it's an ebike at their first sight. And BMS system is also important .It keeps your battery safe from over-charging, over outlet and high temperature. Also , BMS manages all the cells to work more efficiently to offer you a longer range. The seat-post battery is removable so you can either charge it in the bike or separately in your room.


Customized 250W/350W high speed geared brushless motor, weight only 2.4KG but with 40 N.M torque, So you can uphill over 18°. It's so powerful that you don't have to worry about hills or against wind without any sweat. What's more, with a build-in clutch, you will never feel any magnetic resistance when ride without any power-it's a pure, comfortable bike.

Disc Brake

Front and rear disc break keep you safe from any emergency with a break distance within 3 meters. Also ebike lever is another safe keeper on this bike you can find,it shut down the power system right away if you take the break.

PAS Riding System

Multi function LCD display,12 points sensor and FOC controller together combine the PAS system.You can either ride at pedals mode,or at cruise control mode with out pedaling or pure bike mode if you need some exercises.The sensor could detect every intention precisely. Once you are riding qualibike,you will fall love with it.


Reliable folding system ensure your safe trip every day. Painting base on automobile manufacturing process, improves the quality of each QUALIBIKE.

Specs & Options
1) Motor
36V 250/350W geared motor
13) Frame
20 inch 6061 Al-Alloy
2) Battery
36V 10.4Ah/14Ah Li-ion
14) Rim
Alloy Aluminum, Double Wall
Seat post Battery
15) Front Fork
20 inch 6061 Al-Alloy
3) Controller
Kunteng Sine Wave FOC
16) Brake
160mm Disk Brake
Low noise & durable
17) Brake Level
Al-Alloy Ebike Lever
4) Charger
100~240V, 50-60Hz,
18) Spokes
13G 36H
Plug as final market requirement
19) Derailleur
Shimano Outer 7 Speed
5) Displayer
Kunteng LCD
20) Front Hub
Sigma Al-Alloy
6) PAS
5 Classes PAS + Cruise
21) Handle Bar
22) Chain
Rust resistant chain, KMC
7) Max Speed
32Km/h(Limited to 25km/h)
23) Chain wheel
Prowheel 52T
8) Range
>80km By PAS, >30km By Electric
24) Fly wheel
Shimano 14-24T
9) Max Load
25) Stem
Alloy aluminum
10) N.W / G.W
20kgs / 25kgs
26) Saddle
11) Carton Size
1600*600*1120 mm
27) Pedal
Foldable Pedal
12) Capacity
87pcs/20GP,  204pcs/40HC
28) Tyres
20*2.35 COMPASS
(Free offered with standard version)
29) Reflecters
30) Handlebar light
31) Ring
32) Stand
 (For upgrade version)
AA F&R Light(+$10)
Samsung 36V 14Ah(+$100)
Hydraulic brake(+$50)
Rear Rack(+$10)
350W Motor(+$10)
Front Rack(+$10)

Customized Color

Standard Version: Black, White, Red
Customized Colour: MOQ 50pcs

Customized Package

Customized logo & Package:MOQ 100 Pieces
Delivery time: 5 days more than standard version 

Packing & Delivery

Package Size

Box Dimension:162*76*29CM
Gross Weight:33kg
Volume(CBM) per piece:0.36CBM
20 GP Container:87GE
40 HC Container:204GE
Double carton package
(blank carton outside for delivery)

Our Company


Changzhou Qualisports Technology Co., Ltd. located in Changzhou City, Jiangsu Province, one hour hi-speed train from Shanghai and Nanjing.
      We are professional manufacturer and supplier of electric bikes, electric bike conversion kits and electric scooters. We are established in 1996 with over than 20 years experience in electric bicycle industry. We also have our own motor factory and vehicle factory with professional develop team, veteran technician team and sales-service team. So we can control quality and cost very well to assure our advantages in such competitive circumstance.
      We are running two brands: "powerbike™" and "qualisports™".
      Our registered brand "powerbike™" is for production and "qualisports™" is for oversea sells. "qualisports™" sources from quality and sports. We are determined to produce and sell high quality products.The original motivation is to provide our customers all over the world with innovative high quality personal transportation devices and services with the best cost-performance ratio."qualisports™" will be a leading brand in the global market for personal transportation devices and components. We welcome all independent designers joining us. When you have a design, we can help you to bring it to reality.

Why Choose Us
① Motor
24 months
④ Brake lever
6 months
② Battery
24 months
⑤ Controller / Sensor / Instrument
12 months
③ Charge
12 months
⑥ Frame and head tube fork
12 months
According to your approved photos,any parts of the electric bike can be replaced during the guranteed time. If you have any problems ,do not hesitate to cantact with me by Trademanager/Email/Skype/Whatsapp. We will be glad to solve problems at any time.

Q1. What's the MOQ and delivery time?

1) For samples, 1 piece is available for quality check and market test, delivery time within 2 days, ship by air transport door to door.
2) For bulk order, 20~100 pcs delivery time within 20 days, 20'GP delivery time 20~25 days,  40'HC delivery time 25~30 days
3) Customized logo & package only available for MOQ 50 pcs.
4) Customized configuration,depends on the delivery time of selected kits.

Q2. What's your warranty terms?

Our warranty covers manufacturing and material defects, and does not cover normal wear and tear, damage/failure due to an accident, incidental or consequential damage, or any use of the product that's inconsistent with the operating instructions as laid out in our user manual.

Q3. What's your payment terms?

1) For samples, T/T 100% as deposit, you can pay via Alibaba Trade Assurance for payment protection.
2) For bulk orders, T/T 30% as deposit and T/T 70% before delivery. We'll show you the photos of your products and packages before you pay the balance.

Q4. Do you have the products in stock?

Yes, we always keep more than 50 pcs of standard version in stock, so that you can receive the samples in a very short time.

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