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The Pignoni package SRAM RED 1090At 10 speed it is super light and extremely silent, it offers clearly higher performances. The eight pignons located in the center are processed in a single block of high quality steel, to increase rigidity by offering a lighter weight than a titanium box. Between a pigno and L'Other there is a stealthring elastomer, has the purpose of reducing vibrations and noise. The notches on the rear pigns further reduce weight, increasing rigidity.
