Product Description

Upgrade your braking system with the S-PARTS Grade 5 Titanium Center Lock Disc Brake Rotor Lockring, engineered for lightweight performance, high structural strength, and long-term corrosion resistance.

Designed for MTB, road, and gravel bikes using Center Lock disc rotor systems, this precision-machined lockring ensures secure rotor retention, stable braking performance, and consistent fit under demanding riding conditions.

Specifications

• Material: Grade 5 Titanium (Ti-6Al-4V)
• Thread Specification: M30 × 7mm
• Outer Diameter (OD): 44mm
• Inner Diameter (ID): 30mm
• Weight: Approx. 8.7g per piece
• Application: Center Lock disc brake rotor systems (MTB / Road / Gravel bikes)

Finish Options & Surface Technology

Gold / Black / Blue (PVD Vacuum Nitride Coating)
A high-density surface treatment that significantly improves hardness and impact resistance. The color layer is bonded at the molecular level, ensuring strong wear resistance and long-lasting visual stability even under rain, mud, and frequent cleaning.

Green / Purple / Candy Colors (Electrochemical Anodizing)
Formed through controlled oxide layer growth on titanium. Color is created by light interference rather than pigments, resulting in a naturally vivid, stable, and corrosion-resistant finish with no artificial coating layer.

Engineering & Manufacturing Quality

Each lockring is CNC-machined with micron-level precision to ensure accurate threading, smooth installation, and stable rotor clamping force.

The lockring body is produced using S-PARTS proprietary hot-forging tooling, ensuring optimized metal grain structure and consistent mechanical strength throughout the component.

S-PARTS Grade 5 Titanium (Ti-6Al-4V) hardware delivers an exceptional strength-to-weight ratio, offering mechanical performance comparable to 10.9-grade steel fasteners while reducing weight by approximately 50%.

Tool Compatibility

Recommended Tool: PARK TOOL BBT-9
Compatible with any standard 16-notch 44mm Center Lock / bottom bracket style lockring tool.

Production Note

Due to different production batches, the laser-etched graphics and logo placement on the lockring surface may vary slightly from the product images. This does not affect performance or fitment. The actual received product shall prevail.