The Blackbearing D12 40x51.5x7mm 45/45° Headset Bearing is expertly crafted to ensure smooth and responsive steering. Designed to replace original bearings, it provides superior stability and control for a wide range of cycling needs.

Tailored Fit for 1"-1/2 Fork Steerers: With dimensions of 40 x 51.5 x 7mm and a 45/45° angle, the D12 is perfectly suited for 1"-1/2 fork steerers. Its compatibility with leading brands like FSA, Stronglight, Cane Creek, Acros, and Ritchey makes it an excellent choice for performance-driven cyclists.

Chrome Steel Construction for Durability: Built with SAE52100 Chrome Steel balls and rings, the D12 offers excellent resistance to wear and tear. This robust construction ensures long-lasting reliability, even under demanding conditions, providing consistent performance mile after mile.

Premium Grease for Smooth Performance: Pre-lubricated with premium-quality grease, the D12 minimizes friction and ensures seamless steering. This lubrication extends the lifespan of the bearing, making it a dependable upgrade for cyclists seeking long-term performance.

The Blackbearing D12 features advanced angular contact bearings that effectively manage radial and axial loads. It enhances balance and precision, delivering smooth and controlled handling on every terrain.

Features

• Tailored Fit: Designed for 1"-1/2 fork steerers with 40 x 51.5 x 7mm dimensions, compatible with brands like FSA, Stronglight, Cane Creek, Acros, and Ritchey.
• Durable Chrome Steel: SAE52100 Chrome Steel ensures long-lasting wear resistance and reliability.
• Enhanced Stability: Angular contact bearings manage radial and axial loads for balanced and precise steering.
• Effortless Operation: Premium grease reduces friction, ensuring smooth and consistent handling.

Specifications

• Bearing Type: Cartridge
• Dimensions: 40 x 51.5 x 7 mm
• Material: Chrome Steel
• Inner Diameter: 40 mm
• Outer Diameter: 51.5 mm
• Thickness: 7 mm
• Chamfer: 45/45°
• For: 1"-1/2 Fork Steerer