The Shimano BB-UN300 Bottom Bracket - Standard is a high-quality component designed for smooth and reliable performance on your bike. Weighing just 300 grams, this bottom bracket is lightweight yet durable, making it ideal for both casual riders and enthusiasts alike. The BB-UN300 features a standard design that is compatible with a wide range of bikes, ensuring versatility and ease of installation. With precision engineering and high-quality materials, this bottom bracket offers excellent durability and longevity. Its smooth rotation and efficient power transfer make it a great choice for enhancing your cycling experience. Upgrade your bike with the Shimano BB-UN300 Bottom Bracket - Standard and enjoy a smoother, more efficient ride.