SHIMANO Pignone 12D CS R9100 12 25 28 Dura Ace

Durable tooth shaping helps maintain chain engagement over repeated miles, supporting quiet and efficient rotation Optimised spacing improves shift accuracy, reducing hesitation when moving through the cassette under changing terrain 12D / CS-R9100 gear range helps riders manage cadence, climbs and speed changes with a smooth, predictable drivetrain feel Closely engineered sprockets support crisp shifts under varied effort, from steady endurance rides to harder accelerations Corona Individual 12D compatibility makes it suitable for service replacements, wheel builds or drivetrain refresh projects