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TOOQUV Cycling
L-TWOO ER7 Wireless Electronic Road Bike Groupset Hydraulic Disc Brake New & Classic Caliper Options
TOOQUV · Bicycle transmission
€380,00 EUR
€650,00 EUR
PRODUCT DETAILS +
*LTWOO eR7 2X12 ELECTRONIC ROAD GROUPSET
2X12 ELECTRONIC SHIFTING | WIRELESS SHIFTING CONTROL
HYDRAULIC DISC BRAKES | APP ADJUSTMENT
*PRODUCT OVERVIEW
The LTWOO eR7 is an electronic groupset designed for road bikes, combining precise electronic shifting, wireless lever control, hydraulic disc braking, and intelligent APP adjustment.
Designed primarily for 2x12-speed drivetrains, the system delivers fast and smooth shifting while allowing independent front and rear derailleur micro-adjustment through the official APP.
With customizable controls, adjustable shifting speed, and a clean electronic drivetrain design, the eR7 is suitable for training, long-distance riding, and performance road cycling.
*KEY FEATURES
2X12 ELECTRONIC SHIFTING
Electronic front and rear derailleurs provide fast, smooth, and precise gear changes for road cycling.
WIRELESS SHIFTING CONTROL
The shift levers communicate wirelessly with the electronic shifting system, reducing the need for traditional mechanical shift cables.
APP MICRO-ADJUSTMENT
The official APP allows independent micro-adjustment of the front and rear derailleurs for more precise drivetrain tuning.
ADJUSTABLE SHIFTING SPEED
Three shifting-speed settings are available through the APP:
FAST
MEDIUM
SLOW
CUSTOMIZABLE BUTTONS
Left and right shift-button functions can be customized according to rider preference.
HYDRAULIC DISC BRAKES
Hydraulic disc brakes provide strong, progressive, and controlled braking performance for road riding, descents, and high-speed conditions.
*TECHNICAL SPECIFICATIONS
MODEL:
LTWOO eR7
DRIVETRAIN:
2x12-Speed
APP SPEED CONFIGURATION:
10 / 11 / 12-Speed Rear Cassette Configuration
SHIFTING SYSTEM:
Electronic Shifting with Wireless Lever Control
BRAKE SYSTEM:
Hydraulic Disc Brake
RECOMMENDED MAXIMUM CASSETTE:
11-32T
CONNECTIVITY:
Bluetooth
BATTERY CAPACITY:
800mAh
CHARGING:
Type-C
MAIN MATERIAL:
Aluminum Alloy
WATER / DUST PROTECTION:
IP67
APP FUNCTIONS:
Micro-Adjustment / Shift-Speed Adjustment / Button Customization / OTA Update
HANDLEBAR CLAMP DIAMETER:
23.8–24.2 mm
RECOMMENDED USE:
Road / Training / Long-Distance Riding / Performance Cycling
*WHAT'S INCLUDED
1 × Left Electronic Shift / Brake Lever
1 × Right Electronic Shift / Brake Lever
1 × Front Hydraulic Brake Caliper with 900 mm Hose
1 × Rear Hydraulic Brake Caliper with 1700 mm Hose
1 × Electronic Front Derailleur
1 × Electronic Rear Derailleur
1 × Type-C Charging Cable
1 × Front Derailleur Power Cable — 900 mm
1 × Rear Derailleur Power Cable — 1200 mm
1 × Battery and Mounting Accessories
*COMPATIBILITY
Designed for road bicycles with:
2x Drivetrain
10 / 11 / 12-Speed Rear Cassette Configuration via APP
Hydraulic Disc Brakes
Recommended Cassette up to 11-32T
Handlebar Clamp Diameter of 23.8–24.2 mm
Before purchasing, please confirm compatibility with your frame, handlebar, cassette, crankset, chainrings, wheels, brake system, and installation space.
Handlebars with a 22.2 mm installation diameter may not be compatible.
*IMPORTANT
WIRELESS CONTROL + WIRED POWER SYSTEM
The eR7 uses wireless communication between the shift levers and electronic shifting system.
The front and rear derailleurs are powered through dedicated cables connected to the battery.
This is an electronic shifting system and does not use traditional mechanical shift cables.
2X ROAD DRIVETRAIN
The eR7 is designed primarily for 2x12 road-bike drivetrains.
APP configuration supports 10, 11, and 12-speed rear cassette settings, subject to drivetrain compatibility.
*NOT INCLUDED
CASSETTE
CHAIN
CRANKSET / CHAINRINGS
BOTTOM BRACKET
BRAKE ROTORS
MINERAL OIL / BLEED KIT
INSTALLATION TOOLS
Other components not explicitly listed under “WHAT'S INCLUDED” are not included.
*INSTALLATION
PROFESSIONAL INSTALLATION RECOMMENDED
Installation may require:
BRAKE HOSE TRIMMING
HYDRAULIC BRAKE BLEEDING
BATTERY AND POWER CABLE ROUTING
FRONT AND REAR DERAILLEUR SETUP
APP CONFIGURATION
DRIVETRAIN FINE-TUNING
Professional installation by a qualified bicycle mechanic is strongly recommended to ensure safe braking, precise shifting, and correct electronic system setup.
*SHIPPING & WARRANTY
SHIPPING ORIGIN:
Ships from China
WORLDWIDE SHIPPING:
Available
DDP SHIPPING:
Available for Selected European Countries
STORE WARRANTY:
1-Year TOOQUV Store Warranty
EU CONSUMER RIGHTS:
EU consumers additionally retain their applicable statutory consumer rights, including the minimum legal guarantee required by local law.
*NEED HELP WITH COMPATIBILITY?
Not sure whether the LTWOO eR7 is compatible with your bicycle?
Please contact us before ordering and provide:
BICYCLE MODEL
CURRENT DRIVETRAIN
CURRENT NUMBER OF SPEEDS
CASSETTE SPECIFICATION
CHAINRING SPECIFICATION
HANDLEBAR DIAMETER
CURRENT BRAKE TYPE
FRAME / DERAILLEUR MOUNTING CONFIGURATION
We will help you check compatibility before purchase.
-
72-hour dispatch
-
1-Year TOOQUV Commercial Warranty
-
Delivery: 7–15 business days (EU)
What's Included
Your order includes only the items shown in the selected product option.
Please check the product images and option description carefully before placing your order.
If you are unsure about the package contents, feel free to contact our support team before purchasing.
Compatibility
Please verify compatibility with your bicycle before purchasing.
We recommend checking drivetrain speed, brake type, axle standard, crank interface and frame compatibility.
If you are not sure, simply send us your bike specifications via WhatsApp or Email and our team will help you choose the correct model.
Shipping & Warranty
- Orders are processed and dispatched within 72 hours after payment is received (excluding holidays).
DDP (Delivered Duty Paid) shipping is available for selected European countries. Import duties, VAT and customs clearance fees are included in the shipping cost for eligible destinations.
Estimated delivery times vary depending on the destination country, customs clearance, weather conditions and local logistics. If you would like a more accurate delivery estimate, please contact our customer service team or reach us via WhatsApp.
All products are covered by our Store-backed 1-Year Warranty.
A tracking number will be provided once your order has been shipped, allowing you to monitor the delivery status throughout the entire journey.
Warranty
All products include a 1-Year Store Warranty.
If your product has a manufacturing defect during the warranty period, please contact our support team.
We will provide troubleshooting, replacement parts or warranty service depending on the situation.
Need Help
Need compatibility advice?
Our cycling specialists are happy to help.
WhatsApp：
+86 18676711300
Email：
kevinzhang@tooquv.com
Why TOOQUV
Built for performance builds
1-YEAR WARRANTY
Every purchase includes a 1-year warranty and dedicated technical support.
DDP SHIPPING AVAILABLE
DDP shipping is available for selected destinations. Duties and import taxes are included in the shipping fee, so no additional import taxes are required upon delivery.
TRUSTED CYCLING BRANDS
Featuring WHEELTOP, L-TWOO, Magene, XCADEY and other leading cycling brands.
L-TWOO FAQ
How do I perform the initial setup and adjustment?
After installation, pair the components if required, install the compatible cassette and chain, and adjust the derailleur according to the manufacturer's instructions. Fine adjustment may be required to achieve smooth and accurate shifting.
How do I update the firmware?
Firmware updates can usually be completed through the compatible APP. Make sure the battery level is sufficient and keep your device connected during the update. Do not interrupt the update process.
How do I know if an L-TWOO groupset is compatible with my bike?
Before purchasing, please check your bike type, frame compatibility, brake type, cassette, freehub body, and axle standard. You can also send us your bike model and current drivetrain specifications for a compatibility check.
Which L-TWOO groupset is suitable for my bike: eR7, eRX, GRT or eGR?
eR7 and eRX are mainly designed for road bikes. GRT is designed for gravel and all-road riding. eGR is designed for gravel and off-road applications. Please choose the model based on your bike type, riding style, and required drivetrain configuration.
What is the difference between wireless and semi-wireless L-TWOO groupsets?
Wireless systems communicate between components without shift cables, providing a cleaner setup. Semi-wireless systems may use wireless communication between selected components while other parts remain connected by wires. The exact configuration depends on the specific model.
Which L-TWOO APP should I use, and how do I connect my groupset?
Please use the official APP specified for your L-TWOO groupset model. The APP can be used for system connection, firmware updates, button configuration, and other supported settings. Connection instructions may vary depending on the model.
Are your products genuine?
Yes. All products are genuine and sourced directly from manufacturers or authorized suppliers.
Do you offer a warranty?
Yes. Eligible products are covered by a 1-year warranty against manufacturing defects.
Will I have to pay import duties or taxes?
For selected countries and shipping methods, DDP (Delivered Duty Paid) service is available. Please contact us before ordering if you have questions about taxes in your country.
Do L-TWOO electronic groupsets require professional installation?
Professional installation is recommended, especially for hydraulic brake systems and electronic shifting systems. Correct installation and adjustment can help ensure proper shifting and braking performance.
Which brake oil should I use for L-TWOO hydraulic brakes?
Please use the brake fluid specified by L-TWOO for your particular model. Do not mix different types of brake fluid. If you are unsure, contact us with your exact groupset model before adding or replacing brake fluid.
What type of thru axle is compatible with my bike?
Thru axle compatibility depends on your bike frame and wheel standard. Please confirm your frame's front and rear axle specifications before purchasing.
Which cassette and freehub standards are compatible with the groupset?
Cassette compatibility depends on the specific L-TWOO groupset model, speed, derailleur capacity, and freehub body. Please check the product specifications or contact us with your current cassette and wheel hub information before purchasing.
How long does the battery last, and how do I charge it?
Battery life depends on the model, riding frequency, and usage conditions. Please charge the components using the recommended charging method and cable. Avoid using damaged chargers or charging equipment.
What should I do if the shifting is not working properly?
First, check the battery level, component connection, firmware version, derailleur alignment, and chain and cassette compatibility. If the problem continues, contact us with your order number, product model, and a short video showing the issue so we can assist you.
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