Product Description

Engineered for high-performance drivetrain builds, the S-PARTS Titanium Crank Bolt & Self-Extracting Cap Kit is designed specifically for the latest CYBREI GP3 crank system (30Nm specification) featuring Left-Hand (LH) reverse-thread architecture.

Built from aerospace-grade Grade 5 Titanium (Ti-6Al-4V), this upgrade replaces OEM steel hardware with a significantly lighter, stronger, and more corrosion-resistant solution — optimized for riders who demand mechanical precision and visual refinement.

Key Features

 New Generation Compatibility

• Designed for CYBREI GP3 latest 30Nm crank standard
• Compatible with Left-Hand (LH) / Reverse-Threaded Self-Extracting Crank Cap system
• Not compatible with previous 12–15Nm generation crank caps

Grade 5 Titanium Construction

• Material: Ti-6Al-4V (Grade 5 Titanium Alloy)
• Weight: ≈ 15.0g per set
• High strength-to-weight ratio comparable to 10.9-grade high-tensile steel
• Approximately 50% lighter than OEM steel hardware

Torque Specifications

• Crank Cap: 25Nm (LH Thread / Self-Extracting system)
• Crank Bolt: 40Nm (Standard Thread)

Installation Tools (Critical for DIY Mechanics)

Recommended professional tools:

• PARK TOOL FR-5.2
• SHIMANO TL-LR15
• or equivalent cassette lockring tool

⚠️ Always apply correct torque values to avoid thread damage or installation failure.

Surface Finishes

Vacuum Nitriding (PVD) Finish

• Titanium / Black / Blue / Gold
• Deep metallic diffusion layer with high hardness surface
• Excellent wear and corrosion resistance

Anodized Finish

• Purple / Green / Candy / Indigo
• Electrochemical anodization for vivid, multi-dimensional color depth

S-PARTS “Color Rhapsody” Art Series

A curated collection of high-expression visual finishes inspired by motion, geometry, and natural landscapes.

Includes signature editions:

• Oil Slick (Rainbow)
• Prism
• Splatter Pop / Neon Splatter
• Rabbit Camo
• Great Wave
• Tiger / Jaguar
• Snowstorm
• Topographic Glacier

Each piece is individually processed to transform the crankset into a functional art component — merging drivetrain performance with visual identity.

Aerospace-Grade Manufacturing

• CNC precision machining with micron-level tolerance control
• Hot-forged forming process at 650°C controlled environment
• Aerospace supply-chain verified titanium material selection
• Tensile strength: ≥1050MPa

Engineering Philosophy

This product is not simply a replacement part — it is a precision drivetrain upgrade system that merges:

mechanical integrity + weight reduction + visual craftsmanship

Designed for riders who value both performance and aesthetic individuality.