Left shifter Shimano 600 ST-6400

Shimano 600 tricolor ST-6400 Left Shifter – double chainring

Precision and reliability for your road bike drivetrain

The Shimano 600 Tricolor ST-6400 left shifter is a true reference for classic road bikes and high-quality builds. Designed for a double chainring drivetrain, it combines ergonomic design, smooth shifting performance and long-term mechanical reliability—true to Shimano’s heritage. Ideal for maintaining or restoring a bike equipped with Shimano 600 components, it is perfectly suited for vintage enthusiasts as well as demanding road cyclists.

A Shimano 600 shifter designed for road bike drivetrains

Part of Shimano’s STI (Shimano Total Integration) system, this Shimano 600 shifter allows front derailleur shifting without removing your hands from the handlebars. The brake lever and gear control are integrated into a single unit, providing optimal control of the drivetrain during climbs, accelerations and pace changes.

The ST-6400 Tricolor version is fully compatible with Shimano road groupsets from the 1990s, while offering the build quality and durability for which Shimano is renowned.

Technical specifications

• Brand: Shimano

• Series: Shimano 600 Tricolor

• Model: ST-6400

• Position: Left

• Function: Front derailleur control

• Chainring compatibility: Double (2x)

• Drivetrain type: Mechanical

• System: STI (integrated brake and shift lever)

• Front derailleur compatibility: Shimano road

• Rear speeds compatibility: Compatible with road drivetrains of the same generation

• Mounting: Standard road handlebar clamp

• Intended use: Road bike, vintage racing bike, restoration projects

Key features of the Shimano 600 ST-6400 shifter

• Smooth and precise shifting: Reliable indexing for clean and accurate front shifts

• Proven ergonomics: Comfortable lever shape for long rides and consistent control

• Mechanical reliability: Robust construction ensuring long drivetrain life

• Iconic Tricolor design: Classic look that perfectly matches vintage road bikes

• Easy maintenance: Compatible with standard drivetrain cables and housing

Why choose this Shimano 600 shifter?

The Shimano 600 shifter ST-6400 left lever is the ideal choice for maintaining a consistent and efficient drivetrain. It ensures excellent synchronization between the shifter, derailleur cable and front derailleur, delivering smooth pedaling and dependable gear changes across all road conditions.

Whether you are replacing a worn shifter, completing an original Shimano 600 groupset or restoring a classic road bike, this model offers an excellent balance of shifting precision, comfort and authenticity.

Who is this shifter for?

• Classic road bike enthusiasts

• Vintage bike restoration projects

• Riders looking for a proven and reliable drivetrain solution

• Cyclists seeking mechanical and aesthetic consistency with a Shimano 600 groupset