Product Description

S-PARTS Titanium Seatpost Barrel Nut for Giant TCR Gen 10 / Propel Gen 3 & Gen 4

Designed specifically for Giant TCR Gen 10 and Propel Gen 3 / Gen 4 seatpost clamp systems, the S-PARTS Titanium Seatpost Barrel Nut is a lightweight precision replacement component developed for high-performance road bikes.

Manufactured from premium Grade 5 Titanium (Ti-6Al-4V), this compact hardware component combines high strength, corrosion resistance, and lightweight performance while maintaining accurate compatibility with the original saddle clamp structure.

With a refined barrel-shaped design and precision-machined cylindrical profile, it provides a reliable contact interface within the seatpost clamp assembly for accurate installation and consistent fastening performance.

Product Specifications

IMPORTANT:
Please install strictly according to the torque specifications indicated in the official Giant user manual.

Grade 5 Titanium Performance

S-PARTS works with a specialized titanium material supply chain from the Xi'an aerospace industry cluster and applies continuous laboratory comparison testing to carefully select high-performance Grade 5 Titanium (Ti-6Al-4V).

With an average tensile strength exceeding 1050 MPa, S-PARTS titanium hardware surpasses the common industry benchmark of 895 MPa, delivering outstanding mechanical performance for lightweight cycling applications.

Compared with conventional steel hardware, Grade 5 titanium provides an exceptional strength-to-weight ratio, offering comparable mechanical performance to 10.9-grade steel components while weighing approximately half as much.

This makes titanium an ideal material choice for premium bicycle hardware where lightweight performance, durability, and corrosion resistance are equally important.

Precision Forging & Micron-Level CNC Machining

S-PARTS applies strict manufacturing control from material selection to final machining.

For titanium fastener production, dedicated forming dies are used under controlled 650°C hot forging conditions to maintain consistent shaping accuracy. To ensure stable production precision, each forging die is limited to fewer than 300 cycles before replacement.

After forming, component bodies are precision-machined using advanced multi-axis CNC machining systems with micron-level tolerance control.

This integrated manufacturing process ensures accurate dimensions, smooth installation, and consistent quality across every production batch.

Premium Titanium Surface Finishes

Gold, Rainbow / Oil Slick, Black, Blue

These finishes are produced using PVD vacuum nitriding technology, forming a dense protective metal coating on the titanium surface.

The treatment enhances surface hardness, wear resistance, and durability while maintaining vivid metallic colors that remain stable under normal riding conditions.

Green, Purple, Candy, Indigo

These colors are created through titanium anodizing technology.

During electrochemical oxidation, a controlled oxide layer naturally forms on the titanium surface.

The interaction between oxide thickness and light refraction creates unique metallic colors without the use of dyes or pigments.

The anodized finish also improves corrosion resistance while adding a distinctive visual appearance.

Lightweight Upgrade for Giant Road Bikes

Small hardware components can make a meaningful difference in high-performance bicycle builds.

The S-PARTS Titanium Seatpost Barrel Nut delivers:

• Lightweight 3.38g construction
• Grade 5 Titanium (Ti-6Al-4V) material
• Precision CNC machining accuracy
• Cylindrical barrel structure
• Premium titanium surface finishes
• Excellent corrosion resistance

A refined upgrade for riders seeking lightweight performance, reliable fitment, and premium aesthetics on Giant TCR and Propel road bike platforms.