Product Description

Upgrade your CENIT 24 crankset with the S-PARTS Titanium Crank Bolt & Self-Extracting Cap Kit, precisely designed for CENIT 24 axle series cranksets.

Manufactured from premium Grade 5 Ti-6Al-4V titanium alloy, this lightweight upgrade replaces conventional steel hardware with a high-strength, corrosion-resistant titanium solution.

Through precision CNC machining, strict dimensional control, and advanced titanium finishing technologies, S-PARTS delivers a perfect combination of weight reduction, mechanical reliability, and personalized cycling aesthetics.

Product Specifications

Kit Includes

• 1 × Titanium Crank Bolt
• 1 × Titanium Self-Extracting Cap

Key Features

High-Strength Grade 5 Titanium Construction

S-PARTS selects premium Grade 5 Ti-6Al-4V titanium alloy from carefully selected metal supply chains.

Through continuous material testing and quality control, S-PARTS titanium fasteners achieve:

• Average tensile strength exceeding 1050 MPa
• Above the industry reference standard of 895 MPa
• Excellent strength-to-weight ratio
• Superior corrosion resistance compared with traditional steel hardware

Under comparable application conditions, titanium components provide strength performance comparable to high-grade steel fasteners while reducing overall weight significantly.

Precision Forging & CNC Machining

The self-extracting cap is manufactured using custom hot forging processes at approximately 650°C to achieve excellent structural consistency.

To maintain forging accuracy, each dedicated forging die is limited to a maximum of 300 production cycles.

The titanium bolts are precision-machined using advanced CNC equipment with micron-level dimensional control.

Every thread is carefully finished to ensure:

• Smooth installation
• Accurate thread engagement
• Reliable torque transfer
• Long-term riding durability

Premium Titanium Finishes

PVD Vacuum Coating

Gold, Black, and Oil Slick finishes use advanced PVD vacuum coating technology.

A dense protective coating layer is formed on the titanium surface to improve:

• Surface hardness
• Wear resistance
• Color durability

The finish is designed to maintain its appearance through daily riding exposure, including rain, mud, and outdoor conditions.

Titanium Electrolytic Anodizing

Green, Purple, Candy, and Indigo finishes are created through titanium anodizing.

No traditional dyes are used.

Instead, the oxide layer thickness interacts with light refraction to create unique metallic colors while maintaining titanium's natural corrosion resistance.

Artistic Multi-Layer Titanium Designs

S-PARTS transforms titanium hardware into a personalized cycling accessory.

Through advanced layered anodizing techniques, unique patterns and color combinations are integrated into the crank hardware.

Available designs include:

• Prism
• Splatter Pop
• Neon Splatter
• Rabbit Camo
• Great Wave
• Tiger Green-Gold
• Jaguar Green-Gold
• Snowstorm
• Topographic Glacier

A lightweight performance upgrade with a distinctive visual identity.

Installation Notes

• Use a calibrated torque wrench during installation.
• Recommended torque:
  • Crank Bolt: 50 Nm
  • Self-Extracting Cap: 13 Nm
• Pay attention to thread direction:
  • Crank Bolt: Right-hand thread
  • Self-Extracting Cap: Left-hand reverse thread
• Apply titanium anti-seize compound or suitable assembly grease to prevent thread galling.