Upgrade your bike's bottom bracket with the Shimano Ultegra SM-BBR60 Threaded Hollowtech II Bottom Bracket. Built with precision and durability in mind, this bottom bracket is designed for threaded shell widths of 68/70 mm and ensures a smooth and reliable ride. Threaded Hollowtech II Design for Easy Installation: Featuring a threaded Hollowtech II design, the SM-BBR60 bottom bracket is easy to install and provides a secure and stable fit to your bike frame. Enjoy hassle-free setup and worry-free riding with this threaded bottom bracket. Reliable Shimano Bearings and Seals: The Shimano Ultegra bottom bracket is equipped with reliable bearings and seals, providing long-lasting performance and smooth rotation. The high-quality components contribute to its durability and ensure a consistently smooth ride. Long Service Life for Enduring Performance: With its robust construction and dependable components, the SM-BBR60 bottom bracket offers a long service life, reducing the need for frequent replacements. Enjoy enduring performance and extended use from this top-quality bottom bracket. Compatible with Ultegra and Other Compatible Cranksets: Designed for use with Ultegra cranksets, the SM-BBR60 bottom bracket is also compatible with other compatible cranksets that utilize the Hollowtech II system. Enjoy versatility and flexibility when it comes to upgrading your bike's drivetrain.