The Blackbearing 46-68/73-24/GXP B5 Bottom Bracket is designed with performance and durability in mind, making it an ideal choice for cyclists who prioritize smooth and reliable operation on every ride.

Screw-In Machined Aluminum Cups for Superior Alignment: This bottom bracket features two machined aluminum cups that screw into each other, ensuring perfect alignment within the housing. This secure alignment reduces the chance of cracking, resulting in a more stable and consistent performance.

Enhanced Bearing Smoothness and Extended Life: Built to reduce friction and wear, the Blackbearing 46-68/73-24/GXP B5 bottom bracket provides smoother rotations and extended bearing life. This durability ensures that your rides are efficient and low-maintenance over time.

Easy Bearing Replacement for Hassle-Free Maintenance: The design allows for easy bearing replacement, making maintenance and upgrades straightforward. This practical feature helps keep your bike in peak condition with minimal effort.

Crafted from high-quality CNC machined aluminum, this bottom bracket balances lightweight strength with excellent durability, supporting demanding road or trail conditions with ease.

Features

• Superior Alignment: Machined aluminum cups screw into each other, providing secure alignment for stable performance.
• Eco-Responsible BBlock Technology: Focuses on sustainability by allowing bearing replacement without extracting the entire case, preserving the frame and reducing waste.
• Extended Bearing Life: Designed to minimize friction, enhancing smoothness and longevity.
• Easy Maintenance: Quick bearing replacement simplifies maintenance and upgrades.
• Lightweight and Durable: CNC machined aluminum construction ensures strength for demanding conditions.

Specifications

• Frame Diameter: 46 mm
• Frame Width: 68-73 mm
• Spindle Diameter: 24 mm, GXP 24-22 mm
• Bottom Bracket Mount: Press Fit GXP
• Crank Standard: Shimano Hollowtech II
• Bearings: B5
• Material: CNC machined 7075T6 aluminum with black anodized finish