Product Description

⚠️ IMPORTANT: This listing is for ONE (1) set for ONE shifter assembly. Order 2 sets for a complete left-and-right pair of road shifters.

Product Overview

Give your road bike shifters a precision titanium upgrade with the S-PARTS Grade 5 Titanium Shifter Clamp Bolt Kit.

Designed for selected Shimano 105, Ultegra, Dura-Ace and SRAM Force / Red road shifters, this lightweight hardware kit combines Grade 5 titanium, precision CNC machining and premium titanium finishes.

At just 3.6g per set, it is a simple upgrade for weight-conscious road cyclists looking to reduce unnecessary weight while upgrading the details of their bike.

Key Specifications

Kit Includes — 1 Shifter Assembly

1 × Road Shifter T-Head Bolt

• Size: M6 × 11.5mm
• Head Diameter: 12mm
• Head Height: 2mm
• Weight: 1.9g/pc

1 × Road Shifter Clamp Nut

• Size: M6 × 8mm
• Head Diameter: 10mm
• Head Height: 4.5mm
• Weight: 1.26g/pc

1 × Road Shifter Stepped Washer

• Size: M8 × 1.5mm
• Outer Diameter: 14mm
• Thickness: 1.5mm
• Weight: 0.46g/pc

Total Weight: 3.62g/set (listed as 3.6g/set)

For a complete pair of left and right shifters: order 2 sets.

Grade 5 Titanium | High Strength, Low Weight

S-PARTS works with a metal-material supply chain serving the civil aerospace industry in Xi'an, China. Through long-term laboratory comparison and testing, we carefully select Grade 5 Titanium (Ti-6Al-4V) that meets S-PARTS material standards.

S-PARTS titanium fasteners achieve an average tensile strength exceeding 1050 MPa, significantly above the stated 895 MPa industry benchmark.

Under equivalent conditions, S-PARTS Grade 5 titanium fasteners offer mechanical performance comparable to Grade 10.9 steel fasteners, while weighing approximately half as much as steel.

This combination delivers an excellent strength-to-weight ratio for lightweight bike upgrade parts and performance-oriented road bike hardware.

Precision Forged & CNC Machined

• Hot-forged bolt heads at approximately 650°C
• Custom S-PARTS forging dies
• Each stamping die limited to no more than 300 cycles
• Precision multi-axis CNC machining
• Micron-level dimensional control

Strict control over forging and machining processes helps maintain consistent dimensions and precise thread engagement from batch to batch.

Premium Titanium Finishes

Gold · Rainbow · Black · Blue

Produced using PVD vacuum nitriding, these finishes form a dense nitride surface layer that improves surface hardness and resistance to impact and wear.

The treated surface provides rich, durable color and helps resist natural fading during normal riding and everyday exposure.

Green · Purple · Candy · Indigo

These finishes are created through anodic oxidation. By precisely controlling the thickness of the titanium oxide layer, light interference produces the distinctive colors without conventional dyes.

The result is a vibrant titanium finish created by the natural optical properties of the anodized surface.

Raw Titanium

The Raw Titanium option retains the natural appearance of Grade 5 titanium without a decorative colored finish.

Fit & Compatibility

This kit is intended for selected road shifter applications from:

• Shimano 105
• Shimano Ultegra
• Shimano Dura-Ace
• SRAM Force
• SRAM Red

Because shifter hardware dimensions can vary between generations and specific models, please compare the original bolt dimensions with the specifications above before ordering.

If your shifter model is not listed, please contact us with the exact model number so compatibility can be checked before purchase.

Installation & Safety

• Use a 5mm Hex / Allen Key for installation.
• Always follow the shifter manufacturer's specified installation torque.
• Do not exceed the manufacturer's torque specification, particularly when installing components on carbon handlebars.
• Applying a suitable anti-seize compound to titanium threads is recommended to help reduce the risk of galling during installation.
• Check thread engagement and component fit before final tightening.

Frequently Asked Questions

Is one set enough for a pair of road shifters?

No. One set is for one shifter assembly. For a complete left-and-right pair, order 2 sets.

Why is the total weight listed as 3.6g when the individual parts add up to 3.62g?

The three components weigh 1.90g + 1.26g + 0.46g = 3.62g. The product weight is rounded and listed as 3.6g/set.

Is this kit compatible with every Shimano or SRAM road shifter?

Compatibility should not be assumed across every generation. The listed applications are Shimano 105, Ultegra, Dura-Ace and SRAM Force / Red, but exact hardware dimensions may vary by model. Always compare your original hardware with the specifications above.

Why choose Grade 5 titanium instead of steel?

Grade 5 titanium offers an excellent combination of high strength, low weight and corrosion resistance, making it well suited to lightweight performance bicycle hardware.

A Precision Titanium Upgrade for Your Shifters

From Grade 5 titanium and precision CNC machining to carefully controlled forging and distinctive titanium finishes, S-PARTS focuses on the details that make premium bike hardware different.

Give your road shifters a lightweight, precision-machined titanium upgrade.