Highlights
Description
Top-of-the-line road cassette with the bulk of the cogs machined in one piece of tool-grade steel for low weight, no cog flex and high durability. Largest cog is aluminum. Stealth Rings between the cogs minimize chain noise. Hollow steel dome makes for the stiffest gear cluster ever at the lightest weight. 11 speed cassettes with 11 tooth cogs have the smallest cog located behind the cassette in the packaging.