NEW! LTWOO RX Pro 2x12S Drivetrain Group for Road Bike, Hydraulic Disc Brakes, 12S Gear Lever, Rear Derailleur, Full Groupset

New RX Pro 2026 Upgrade

The all-new RX Pro features a redesigned ergonomic shifter,a precise 12-speed mechanical shifting system, and powerfulhydraulic disc brakes, delivering smoother shifting, confidentbraking, and enhanced control for road cycling.

RX Pro Shift/Brake Levers

New Integrated Shifting System

The shift lever and brake lever work together in an intuitiveintegrated design, providing smooth and efficient gearchanges.

Single-Click Upshift

Push the shift lever to move the rear derailleurtoward a smaller sprocket for a harder gear.

One gear per click

Precise and controlled shifting

Improved riding safety

Multi-Shift Downshift (Up to 3 Gears)

Push both the brake lever and shift lever together tomove the rear derailleur toward a larger sprocket for aneasier gear.

Reach Adjustment

The brake lever reach can be easily adjusted by accessingthe adjustment screw with a hex wrench, allowing ridersto customize lever position for optimal comfort and con-trol.

Rear Derailleur

Enhanced Spring Tension

A dual-spring tension system increases derailleur stabilityand keeps the chain under consistent tension, improvingshifting performance on rough roads.

Specifications

Max Cassette Cog: 32T

Min Cassette Cog: 28T

Total Capacity:<37T

Optimized Stability

Reinforced cable fixing structure for improved cable reten- tion and durability.

Integrated chain-retention guide design helps reduce the risk of chain drops.

Positive/Negative tooth jockey wheels improve chain guid-ance and chain wrap for smoother drivetrain performance.

Front Derailleur

Specifications

Max Chainring Size: 56T

Capacity: 16T

Installation Angle: 61°-66°

Chainline: 43.5-44.5mm

Excellent Frame Compatibility

The front derailleur features an integrated cable housingstop, making installation easier on frames without a dedicat-ed cable housing mount and improving overall compatibili- ty.

Quick Cable Tension Adjustment

An external tension adjustment screw allows fine-tuning ofcable tension without re-clamping the cable or using aninline barrel adjuster, making setup and maintenance fasterand more convenient.

Hydraulic Brake Calipers

One-Piece CNC Machined Construction

Manufactured from a single CNC-machined body, the cali-per offers increased stiffness and more even force distribu-

Benefits include:

Reduced caliper flex under braking

More direct braking force transfer

Consistent and linear braking feel

Improved braking stability and control