The Shimano BB-MT801 Bottom Bracket BSA Threaded is designed with superior engineering to offer improved performance and longevity. One of its key features is the enhanced sealing technology, which provides better protection against dirt, water, and other contaminants, ensuring the longevity of your bottom bracket even in the harshest riding conditions. Additionally, the compact ball bearings are specifically engineered to deliver smoother and more efficient rotation, reducing friction and providing a more responsive pedaling experience. This combination of advanced sealing and compact bearings makes the Shimano BB-MT801 an excellent choice for riders seeking a reliable and high-performing bottom bracket that can withstand the demands of both trail and road riding.