72-HOUR DISPATCH
Orders are dispatched from our warehouse within 72 hours after quality inspection.
TOOQUV Cycling
L-TWOO eRX Electronic Road Bike Groupset with Wireless Shifting & Hydraulic Disc Brakes
TOOQUV · Bicycle transmission
€579,00 EUR
€860,00 EUR
PRODUCT DETAILS +
*LTWOO eRX 2X12 SEMI-WIRELESS ELECTRONIC ROAD GROUPSET
2X12 ELECTRONIC SHIFTING | SEMI-WIRELESS CONTROL
CARBON FIBER LEVERS | HYDRAULIC DISC BRAKES
*PRODUCT OVERVIEW
The LTWOO eRX is a semi-wireless electronic groupset designed for road bikes, combining precise electronic shifting, carbon fiber lever construction, and hydraulic disc braking.
Designed for 2x12-speed road drivetrains, the eRX features wireless lever control, electronic front and rear derailleurs, a rechargeable central battery, and a clean electronic drivetrain layout for training, long-distance riding, and performance cycling.
*KEY FEATURES
2X12 ELECTRONIC SHIFTING
Electronic front and rear derailleurs provide fast, smooth, and precise gear changes.
SEMI-WIRELESS CONTROL
The shift levers communicate wirelessly, while the front and rear derailleurs receive power from the central battery.
CARBON FIBER LEVERS
Carbon fiber lever construction provides lightweight performance, comfortable ergonomics, and a premium finish.
CARBON FIBER REAR DERAILLEUR PULLEYS
The electronic rear derailleur features carbon fiber pulleys for a lightweight and performance-focused design.
HYDRAULIC DISC BRAKES
Hydraulic disc brakes provide strong, progressive, and controlled braking for road riding and descents.
TYPE-C CHARGING
The rechargeable central battery supports convenient Type-C charging.
*TECHNICAL SPECIFICATIONS
MODEL:
LTWOO eRX
DRIVETRAIN:
2x12-Speed
SHIFTING SYSTEM:
Semi-Wireless Electronic Shifting
BRAKE SYSTEM:
Hydraulic Disc Brake
LEVER CONSTRUCTION:
Carbon Fiber
FRONT DERAILLEUR:
Electronic Direct Mount
MAXIMUM FRONT CHAINRING:
56T
REAR DERAILLEUR:
Electronic Rear Derailleur with Carbon Fiber Pulleys
RECOMMENDED CASSETTE:
11-32T
BATTERY:
Rechargeable Central Battery
CHARGING:
Type-C
HANDLEBAR TYPE:
Drop Bar
RECOMMENDED USE:
Road / Training / Long-Distance Riding / Performance Cycling
*WHAT'S INCLUDED
1 × Pair of Electronic Levers
1 × Electronic Front Derailleur
1 × Electronic Rear Derailleur with Carbon Fiber Pulleys
1 × Central Battery
1 × Front Derailleur Power Cable — 0.9 m
1 × Rear Derailleur Power Cable — 1.2 m
1 × Type-C Charging Cable
1 × Front Hydraulic Brake Caliper
1 × Rear Hydraulic Brake Caliper
Hydraulic Brake Hoses
Installation Hardware
*COMPATIBILITY
Designed for:
2x12 Road Drivetrains
Drop Bar Road Bikes
Hydraulic Disc Brakes
Direct Mount Front Derailleur Installation
Front Chainrings up to 56T
Recommended Cassette: 11-32T
Final compatibility depends on your frame, front derailleur mount, cassette, chain, crankset, chainrings, wheels, brake system, and installation clearance.
*IMPORTANT
The LTWOO eRX is a semi-wireless electronic shifting system.
The shift levers provide wireless control, while the electronic front and rear derailleurs are powered by cables connected to the central battery.
This product does not use traditional mechanical shift cables.
*NOT INCLUDED
CASSETTE
CHAIN
CRANKSET / CHAINRINGS
BOTTOM BRACKET
BRAKE ROTORS
WHEELS
MINERAL OIL
INSTALLATION TOOLS
Other components not listed under “WHAT'S INCLUDED” are not included.
*INSTALLATION
PROFESSIONAL INSTALLATION RECOMMENDED
Installation may require brake hose trimming, hydraulic brake bleeding, power cable routing, and front and rear derailleur adjustment.
Professional installation is recommended to ensure safe braking and precise shifting.
*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 eRX is compatible with your bicycle?
Please contact us before ordering and provide:
BICYCLE MODEL
CURRENT DRIVETRAIN
CURRENT NUMBER OF SPEEDS
CASSETTE SPECIFICATION
CHAINRING SPECIFICATION
FRONT DERAILLEUR MOUNT TYPE
CURRENT BRAKE TYPE
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.
Complete your build
Explore the catalog
Browse transmission systems and precision parts for your next upgrade.
Shop transmission