Product Description

S-PARTS Grade 5 Titanium Internal Centerlock Lockring

Designed for riders who demand lightweight performance, long-term durability, and premium aesthetics, the S-PARTS M30 Internal Centerlock Lockring is precision-machined from aerospace-grade Grade 5 Titanium (Ti-6Al-4V).

Weighing only 5.46g, this ultra-light rotor lockring delivers an exceptional strength-to-weight ratio while providing reliable and secure rotor retention for high-performance road, gravel, cyclocross, and compatible XC MTB builds.

Engineered for riders who appreciate both technical performance and visual refinement, this titanium lockring is the perfect finishing touch for lightweight custom builds and premium drivetrain upgrades.

Specifications

• Material: Grade 5 Titanium (Ti-6Al-4V)
• Type: Internal-Type Centerlock Lockring
• Thread Specification: M30
• Outer Diameter: 40mm
• Inner Diameter: 30mm
• Weight: Approx. 5.46g / pc
• Recommended Torque: 40 N·m
• Tool Compatibility:
  • PARK TOOL FR-5.2
  • SHIMANO TL-LR15
  • Standard 12-spline cassette / rotor lockring tools

Available Colors

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

Premium Surface Finishes

PVD Vacuum Nitride Coating

(Gold / Black / Blue)

The Gold, Black, and Blue versions feature advanced PVD vacuum nitride coating technology, forming a dense metallic nitride layer on the titanium surface.

This process enhances:

• Surface hardness
• Wear resistance
• Impact resistance
• Corrosion protection

The finish penetrates deeply into the titanium surface rather than sitting like traditional paint coatings, resulting in rich and vibrant colors with outstanding durability. Under normal riding conditions, the finish resists fading even in rain, mud, and demanding environments.

Anodized Titanium Finish

(Green / Purple / Rainbow)

The Green, Purple, and Rainbow versions use a precision electro-anodizing process that creates controlled oxide layers on the titanium surface.

Instead of dyes or pigments, the vivid colors are produced naturally through light interference caused by varying oxide film thicknesses. The result is a brilliant and highly distinctive finish with enhanced corrosion resistance and surface durability.

Each anodized component may display subtle color variations, giving every piece its own unique appearance.

Aerospace-Grade Titanium Performance

S-PARTS carefully selects premium Grade 5 Titanium materials engineered for high-performance cycling applications.

Compared with conventional steel hardware, Grade 5 Titanium offers:

• Similar overall mechanical performance to 10.9-grade steel
• Approximately 50% lower weight than steel equivalents
• Outstanding corrosion resistance
• Exceptional strength-to-weight ratio

With an average tensile strength exceeding 1050 MPa, the material significantly surpasses standard industry requirements while maintaining excellent long-term durability.

Optimized Lightweight Structure

Leveraging the exceptional strength of Grade 5 Titanium, S-PARTS redesigned the internal tool interface using a refined 6-lobe drive structure instead of the conventional 12-spline alloy-style design commonly found on standard lockrings.

By optimizing the internal geometry and reducing unnecessary material, the lockring achieves a significant weight reduction while maintaining excellent structural integrity and reliable tool engagement.

The result is not only a lighter component, but also a cleaner and more distinctive visual profile that perfectly complements high-end lightweight builds.

Precision Manufacturing

Every S-PARTS lockring is manufactured using high-precision CNC machining with micron-level tolerance control to ensure accurate threads, smooth installation, and secure fitment.

The lockring body is produced with exceptional structural integrity for reliable performance under demanding riding conditions, while the finely machined detailing reflects the craftsmanship expected from premium titanium components.

Lightweight Upgrade for Performance Builds

Ideal for:

• Road bikes
• Gravel bikes
• Cyclocross bikes
• Compatible Cross-Country (XC) MTB setups
• Lightweight performance builds
• Premium titanium component upgrades

Whether you're chasing the lightest possible build or refining the smallest visual details of your bike, the S-PARTS titanium centerlock lockring delivers both performance and craftsmanship in one ultra-light package.

Compatibility Note

Internal-type centerlock lockrings may not be compatible with some oversized MTB thru-axle hub designs due to limited tool clearance.

Please verify hub and tool compatibility before purchase.

Package Notice

Due to different packaging batches, the layout or positioning of graphics and components shown in product images may vary slightly from the actual product received.