Campagnolo Chorus 10 Speed, MK 2 Cassette.

Fits all models of 1997 to current Campagnolo 9 and 9/10 speed hubs. The heat treated, hardened
and nickel chromed steel cogs are precisely machined and carefully finished to provide smooth, responsive
shifting and long lasting beauty. Note how the largest four cogs are riveted to two carriers. While this reduces
weight and increases the stiffness of the cogs, it makes it impossible to replace the cogs individually. They
must be replaced in pairs. The smaller cogs may be replaced individually.

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