The Shimano Cues U8000-1 40-tooth chainring is tailored for the Shimano Cues FC-U8000-1 Hollowtech 2 crankset and engineered with advanced features to enhance your cycling experience. This chainring is designed with mounting holes that allow for the attachment of a Shimano Cues chain guard, providing additional protection against dirt or pant legs getting caught between the chainring and the chain during riding. 

One of the most notable features of this chainring is its specially designed tooth profiles. These are optimized to enhance chain engagement and retention, ensuring a smoother and more reliable ride on rough roads thanks to Shimano's DYNAMIC CHAIN ENGAGEMENT+ technology. This innovative approach minimizes the risk of chain drops and improves traction in all gears. 

The chainring is compatible with 9, 10, and 11-speed drivetrains, offering a wide range of cyclists the opportunity to upgrade their equipment. It features four mounting holes with an asymmetric bolt circle diameter of 96 mm. 

With these features, the Shimano Cues U8000-1 chainring combines durability, performance, and versatility, making it an excellent choice for those looking to optimize their drivetrain for better control and efficiency.