The Shimano SM-BB72-41B Bottom Bracket is a high-quality component designed for smooth and efficient cycling performance. Weighing just 63 grams, this bottom bracket is lightweight yet durable, making it ideal for both road and mountain bikes. The SM-BB72-41B features a precision-engineered design that ensures optimal power transfer and minimal friction, resulting in a more responsive ride. With its sealed cartridge bearings, this bottom bracket offers excellent protection against dirt and water ingress, enhancing its longevity. Compatible with Shimano Hollowtech II cranksets, the SM-BB72-41B is easy to install and maintain. Upgrade your bike's performance with the Shimano SM-BB72-41B Bottom Bracket and experience a smoother and more efficient ride.