* Single-ring drivetrain simplifies functionality and reduces weight* 48 and 50t variants feature direct mount aero chainrings for better aerodynamics* Non-aero chainrings can be installed with a single tool, making gearing changes a breeze* SRAM X-SYNC™ wide-tooth, narrow-tooth chainring technology provides maximum chain control* Laser-etched chainring finish is more durable* DUB™ bottom bracket adds durability and simplicity* Can be upgraded to a power meter