Campagnolo Veloce 9 spd cassette have heat treated cogs which are carefully machined from nickel chrome steel. All of these cogs have a hardened chrome, satin silver finish for longer wear.
Each cog has an indented ramp, called Ultra Drive (UD), to assist in up shifting. Tooth profiles are also custom configured to help with down shifting.
Compatible with 9sp Record, Chorus, Centaur and Mirage.
Supplied without lockring.