The CAMPAGNOLO SUPER RECORD Cassette is constructed from a highly functional combination of titanium, nickel plated steel, and aluminum. The upper six cogs are divided on to two separate internal aluminum frames that increases rigidity by 180% over previous designs. Stiffer cogs translate directly to faster, snappier shifts. The nickel-chrome coating on the lower 6 cogs drastically reduces friction, helping to extend cassette life, and making for a quieter running drivetrain.
A new tooth profile has been designed to place less stress on the chain; allowing for more contact through the full range of rotation. Refined machining from top to bottom guides the chain through up-shifts and makes down shifting under load a breeze
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