Enhance the performance and durability of your bike with this high-quality Bottom Bracket designed for 68mm frame shells. Crafted for strength and longevity, this bottom bracket features a robust steel shell that effectively absorbs roundness tolerance during installation, ensuring a precise and secure fit. Its integrated system design offers superior frame protection and delivers more power output compared to ordinary bottom bracket structures, making it an ideal upgrade for cycling enthusiasts seeking reliability and efficiency. Key Features: · Solid and Durable Construction: Built with a strong steel shell and high-quality materials to provide long-lasting service and withstand rigorous riding conditions. · Precision Fit for 68mm Frame Shells: Specifically designed to fit standard 68mm bottom bracket shells, ensuring compatibility with a wide range of bicycles. · Tolerance Absorbing Steel Shell: The steel shell design accommodates minor variances in frame shell roundness, facilitating easier installation and enhanced stability. · Integrated System for Improved Performance: Protects the bike frame while maximizing power transfer, offering better efficiency than conventional bottom bracket designs. · Lightweight Design: Weighing approximately 316g (11.15oz), it balances durability with minimal added weight to your bike. · Easy Installation and Replacement: Recommended to use a BB tool for safe and secure installation to maintain optimal performance and safety. Specifications: · Suitable Frame Shell Diameter: 68mm · Weight: Approx. 316g (11.15oz) · Size Options: 68 × 118mm / 120mm / 122.5mm / 124.5mm / 127.5mm · Cups Thread Size and Pitch: 34.798mm, 1.37 × 24 TPI · Structure: 2 Bearings Package Includes: · 1 × Square Hole Axis · 2 × Screws This bottom bracket is engineered to provide cyclists with enhanced power output and frame protection, making it a dependable component for upgrading or replacing your bike’s existing bottom bracket. Its solid build and precision design ensure a smooth, efficient ride with long-term reliability.