QR-E MUTE-Plus +B70*1 200Wh Ebike Kit


QR-E Mute Plus 250W   B70 200Wh bottle battery
Electronic clutch and manual clutch
Active energy recovery
Package includes
1.QIROLL QR-E Mute+ friction drive Motor
2.B70 bottle 25V 200WH battery
3. DC Changer 25V 2A
4.S-2 control switch
Travel range :  42-46km ( pedaling).
Speed: The maximum speed is 27 mph (pedaling ).
Cycling mode: 2 riding modes,  ECO and Sports.

Price including VAT no additional payment is required.

Shipping time 12-18 days.

Please add to the shopping cart and pay in the shopping cart page.

131 in stock

SKU: 003 Category:


1. We use express delivery to reach most parts of the world. If you need to confirm the delivery, please contact us.
2. For some special bicycles.Please send us photos of  bicycles
3. Supply accessories and sell at the same time on aliexpress
4.For  US EU  customers, we provide VAT service, you do not need to pay additional VAT.

Qiroll QR-E MUTE+

Smallest and lightest
No noise
Active energy recovery
Aluminum alloy frame
Easy installation


Smallest and lightest

The battery is the same size and weight as a water bottle
Same as the original balance of the bike
Maximize the joy of cycling

Weight: 520g

QR-E Size: 79*66*40mm

B70 Weight :720g

Easy installation

Fix the motor with 2 M5 anti-rust screws
The first installation and adjustment time is estimated to be completed in 5-10 minutes
Comes with a variety of installation tools, compatible with most bicycles

Whether it’s road, mountain, folding, or small-wheel bikes
The QR-E kit can be naturally integrated into the style of the bicycle without being obtrusive

Automatic two-way

More installation locations

Polymer Rubber Friction Stickers
No damage to tires
Easy to replace

Electronic clutch
The motor automatically synchronizes with the tire speed
No resistance

Separate motor from tire
Same as the original bike

The B70 battery kit comes with a conversion cable, and the car charger can be used (purchased separately, it needs to support 12-24V input). Equivalent to a 200Wh power bank, providing 120W output performance (connector limit)

1. We use express delivery to reach most parts of the world. If you need to confirm the delivery, please contact us .

Some countries charge tariffs(We declare 100USD)15-25 days
North America is transported by logistics companies. After the goods are delivered to the United States, the local warehouses will use FedEx to deliver them.12-20 days
Most European countries  use free-tarifflogistics channels, and QR-E is delivered to customers by European logistics warehouses using UPS.15-25 days

2. For some special bicycles.Please send us photos of  bicycles

Total: 1.2 kg (QR-E + B60 battery)
1.7kg(QR-E + B70 battery)

B60 Kit Standard range (32km – B60 eco mode+pedaling)


B70 Kit Standard range (46km – B70 eco mode+pedaling)

Suitable for bicycles: road bikes, off-road bikes (riding on asphalt roads), city bikes, folding bikes
Need 6 * 4CM space to install
It may take some DIY to send a photo of the bike for confirmation.
Battery size: 60 * 190MM(B60)
73 * 210MM(B70)
More information www. Qiroll.com
Tire tread pattern needs to be continuous
Youtube: HTTPS://youtu.be/dGc1Bqdc6v4      Introduction
https://youtu.be/rx1qb31U6ng          Installation
Speed: The maximum speed is 27 mph (Support speed ).
Cycling mode: 2 riding modes, from ECO to sports.
B70 Package includes
1.QIROLL QR-E Mute Plus  friction drive system
2.B70 bottle 25V 9.6ah battery
3. DC Changer 25V 2A
4.S-2 control switch
6.Friction  *2
The electronic clutch is a virtual clutch. The way of working is that the motor is not separated from the tire (not through mechanical parts) and the electronic is used to eliminate the resistance of the motor.
Manually separate the motor from the tire only when the booster is not in use.
This way of working is a revolutionary improvement to the friction booster, unlike other similar products.
Electric Clutch: Qiroll’s electronic clutch technology ensures a very stable drive. It comes into contact with the tire without resistance and can enter the operating state quickly and steadily.
Mechanical Clutch: The adjustment knob separates the motor from the tire when the battery is completely depleted or needs to be self-riding.
Flexible use: The booster is not something that can’t be changed and can be easily removed without using it. With electronic clutch technology, installation and adjustment is very simple.
Reliability: The second generation of motors has a larger margin and the motor life is also very long. In extreme cases, the internal controller actively cuts off the power to ensure safety.
Reliable system: QR-E components are designed for friction assist. After years of testing and market feedback, they are reliable, stable and easy to install.
Passed safety certification, can be sent to Europe

Estimated delivery time 12-18 days

Additional information

Weight3 kg