Shimano's Dura-Ace 9-Speed Cassette offers super shifting and reliability. It features Shimano's patented Hyperglide system that allows quick and smooth shifts even under load. And, the drilled teeth, titanium cogs and aluminum cog carrier keep this cassette light for quick acceleration and climbing.
|Option||Manufacturer's Part Number|
|12-27 (add $16)||ICS77009227|