SRAM XX Eagle XS-1297 Transmission 12 Speed Cassette Shimano Unique zipper design allows it

Unique zipper design allows it to be accessed while on the bike

2020 Bicycling Magazine Editor Choice for the best high-volume mini pump

effortless front shifting and exceptional reliability in all weather conditions

tool-free change

Fits regular size GPS computers

SRAM XX Eagle XS-1297 Transmission 12 Speed Cassette Shimano Unique zipper design allows itThe XX Eagle Transmission (T Type) Cassette is a major reason why Eagle Transmission offers the best ever inboard and outboard shifting performance under load. Thanks to its full X Sync design, the harder you pedal, the better it shifts. Literally. Engineered as integrated and interdependent transmission components, the XX Eagle Transmission Cassette and derailleur contact directly, ensuring perfect alignment on every bike. From its massive 520% gear