The Shimano BB-Es300 Bottom Bracket is a high-quality component designed for smooth and reliable performance on your bike. Weighing just 250 grams, this bottom bracket is lightweight yet durable, making it ideal for both road and mountain biking. The BB-Es300 features a sealed cartridge design for enhanced protection against dirt and water, ensuring long-lasting functionality. With its durable construction and precise engineering, this bottom bracket provides efficient power transfer and smooth pedaling motion. Compatible with a wide range of cranksets, the Shimano BB-Es300 is a versatile choice for cyclists looking to upgrade their bike's drivetrain. Trust in Shimano's reputation for quality and performance with the BB-Es300 Bottom Bracket.