SRAM’s 1x Eagle component system boasts a twelve-speed cassette. CeramicSpeed have built pulleys that can handle the load better than running at stock. These CeramicSpeed Pulley Wheels work with less drag, adding to the power transmitted to the rear wheel, and greater durability, too, going longer between replacement intervals.
The upper and lower pulleys both have a narrow-wide tooth design. Both pulleys have 14 teeth.