Upgrade your bike's bottom bracket with the Shimano Ultegra Pressfit Bottom Bracket SM-BB72-41B. Designed for Hollowtech II cranksets and featuring a press-fit installation, this bottom bracket ensures reliable and long-lasting performance for your rides. Smooth and Reliable Operation: The Shimano Ultegra Pressfit Bottom Bracket SM-BB72-41B is equipped with high-quality Shimano bearings and seals, providing smooth and reliable operation. Experience reduced friction and efficient power transfer during pedaling. Long Service Life: Built with durability in mind, the Ultegra bottom bracket offers a long service life, making it a reliable component for your bike. Enjoy consistent performance over countless miles, reducing the need for frequent replacements. Press-Fit Installation for Easy Setup: The press-fit installation of the SM-BB72-41B bottom bracket simplifies the setup process. With proper tools and techniques, the installation becomes straightforward, allowing you to spend more time on the road. Compatible with Hollowtech II Cranksets: Designed for Hollowtech II cranksets, the Ultegra bottom bracket ensures seamless compatibility and optimal performance. Pair it with your Ultegra crankset for a smooth and efficient drivetrain system. 86.5 mm Shell Width: The SM-BB72-41B bottom bracket has an 86.5 mm shell width, providing a precise fit for frames with this specification. Ensure a secure and stable bottom bracket assembly with the correct shell width.