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TOOQUV Cycling
L-TWOO GRT Wireless Electronic Gravel Groupset Hydraulic Disc Brake System
TOOQUV · Bicycle transmission
€231,88 EUR
€530,00 EUR
PRODUCT DETAILS +
*LTWOO GRT 1X12 GRAVEL GROUPSET
1X12 MECHANICAL CABLE SHIFTING | HYDRAULIC DISC BRAKES
CARBON FIBER LEVERS | UP TO 50T CASSETTE
*PRODUCT OVERVIEW
The LTWOO GRT 1x12 is designed for Gravel, All-road, and mixed-terrain riding, combining reliable 12-speed mechanical cable shifting with hydraulic disc braking.
Its simple 1x12 single-chainring drivetrain, carbon fiber levers, and wide-range cassette compatibility provide precise shifting, stable braking, and easy maintenance for climbs, gravel roads, and long-distance riding.
*KEY FEATURES
1X12 MECHANICAL SHIFTING
Reliable mechanical cable shifting provides precise gear changes without batteries or charging.
HYDRAULIC DISC BRAKES
Provides strong, progressive, and controlled braking performance for descents, wet conditions, and rough terrain.
CARBON FIBER LEVERS
Lightweight carbon fiber levers provide comfortable ergonomics and a premium finish.
LONG-CAGE REAR DERAILLEUR
Designed for wide-range 1x12 Gravel drivetrains and stable shifting across mixed terrain.
UP TO 50T CASSETTE
Compatible with cassettes up to 50T, providing a wider gear range for steep climbs and Gravel riding.
*TECHNICAL SPECIFICATIONS
DRIVETRAIN:
1x12-Speed
SHIFTING SYSTEM:
Mechanical Cable Shifting
BRAKE SYSTEM:
Hydraulic Disc Brake
LEVER MATERIAL:
Carbon Fiber
LEVER TYPE:
Integrated Brake / Shift Lever
CALIPER MOUNT:
Flat Mount
MAXIMUM CASSETTE:
50T
REAR DERAILLEUR:
12-Speed Mechanical Long-Cage Rear Derailleur
HANDLEBAR TYPE:
Drop Bar
FRONT DERAILLEUR:
Not Required
RECOMMENDED USE:
Gravel / All-road / Mixed Terrain / Long-Distance Riding
*WHAT'S INCLUDED
1 × Left Lever — Brake Only
1 × Right Lever — 12-Speed Shifting + Brake
1 × LTWOO GRT 12-Speed Rear Derailleur
1 × Front Hydraulic Brake Caliper with Hose
1 × Rear Hydraulic Brake Caliper with Hose
Mechanical Shift Cable
Caliper Mounting Hardware
*COMPATIBILITY
Designed for:
1x12 Drivetrains
Drop Bar Handlebars
Hydraulic Disc Brakes
Flat Mount Calipers
Mechanical Cable Shifting
Cassettes up to 50T
No Front Derailleur Required
*IMPORTANT
The LTWOO GRT uses mechanical cable shifting with hydraulic disc brakes.
This is not an electronic groupset and requires no battery, charging, Bluetooth connection, or electronic rear derailleur.
Designed specifically for 1x12 single-chainring drivetrains.
*NOT INCLUDED
CASSETTE
CHAIN
CRANKSET / CHAINRING
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, shift cable routing, and rear derailleur adjustment.
Professional installation by a qualified bicycle mechanic 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 GRT 1x12 is compatible with your bicycle?
Please contact us before ordering and provide:
BICYCLE MODEL
CURRENT NUMBER OF SPEEDS
CASSETTE SPECIFICATION
CHAINRING SPECIFICATION
BRAKE MOUNTING STANDARD
CURRENT DRIVETRAIN
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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