This chainring was designed for use with a 104 BCD on any 104 crankset. It utilizes our T-Type design and is backward compatible with Eagle technology (X-SYNC II). SRAM's drivetrain engineers have optimized this chainring to manage the high torque and wear that e-bike riders face. The aggressive tooth design ensures better chain retention, resulting in a smoother, more efficient pedaling experience, with an emphasis on long durability.