Description

This M4 x 12mm titanium front derailleur adjustment bolt is designed as a lightweight and corrosion-resistant upgrade for Shimano Di2 front derailleurs.

As the limit adjustment screw, this small but critical component controls the derailleur’s travel range, helping ensure precise shifting, proper chain alignment, and smooth drivetrain performance—even under load or during aggressive riding.

Machined from aerospace-grade Grade 5 Titanium (Ti-6Al-4V), the bolt offers outstanding strength, corrosion resistance, and long-term durability while significantly reducing weight compared to standard steel hardware.

At just 0.46g, it is an excellent upgrade for riders who value both performance and refined aesthetics. With nine premium finish options, you can also match your drivetrain details perfectly to your bike build.

Specifications:

Specifications

Material: Grade 5 Titanium (Ti-6Al-4V)
Thread Size: M4 x 12mm
Weight: Approx. 0.46g
Tool Interface: 2mm Hex Key
Function: Front Derailleur Limit / Travel Adjustment

Package Includes:
1 × Titanium Adjustment Bolt

Color Options:
Gold, Rainbow, Titanium, Black, Blue, Green, Purple, Candy, Indigo

Compatibility

Compatible with the following Shimano Di2 front derailleurs:

• Shimano Dura-Ace R9250 (12-speed Di2)
• Shimano Ultegra R8150 (12-speed Di2)
• Shimano Ultegra R8050 (11-speed Di2)

Features

Precision CNC Machining
Manufactured using high-precision CNC machining to ensure accurate thread engagement and reliable derailleur adjustment.

Aerospace-Grade Titanium
Made from Ti-6Al-4V Grade 5 titanium, offering exceptional strength, corrosion resistance, and fatigue durability.

Ultra-Lightweight Upgrade
Weighing only 0.46g, it reduces rotational and component weight compared to stock steel adjustment screws.

Direct Replacement Design
Directly replaces the original steel limit screw for improved durability and weight savings.

Premium Color Finishes
Available in 9 anodized or PVD finishes, allowing riders to match their drivetrain components and create a fully customized bike build.

Installation Note

Please confirm the original bolt size and thread specification (M4 × 12mm) before installation to ensure proper compatibility with your derailleur.

Why Upgrade to Titanium?

Compared to standard steel hardware, titanium bolts provide an ideal balance of strength, weight savings, and corrosion resistance. For performance-focused cyclists and detail-oriented bike builders, titanium fasteners are a popular upgrade that enhances both function and aesthetics.