The Chorus cassette has exactly the same teeth profiles and spacing found in Campag's higher-end Record and Super Record groupsets.
All of the sprockets are coated steel (nickel-chrome), and they should prove to be extremely durable, so unless an all-out low weight is crucial, this is a very sensible option.
Shifting is as confidence-inspiring as you’d expect from Campag, and with deeper teeth than Shimano, it’s reassuringly solid – though not as silky smooth as Ultegra.
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