Shimano Ultegra CS-6600 Cassette 10-speedThe Ultegra 10-speed Cassette in different ratios.Weight supplement: at 12-25 teethFACT SHEET OF...

High performance HG-EV 11-speed 105 Road cassette Hyperglide EV sprockets have a computer designed tooth configuration with contoured shift gates, resulting in a crisp smooth shift even under load Close ratio gearing allows a more efficient use of energy through finer cadence control...

High quality 9-speed cassette Hyperglide sprockets have a computer designed tooth configuration with contoured shift gates, resulting in a crisp smooth shift even under load Close ratio gearing allows a more efficient use of energy through finer cadence control Gear ratios to suit all...