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CULT TECHNOLOGY AND A NEW CORROSION-PROOF TREATMENT EXALT ITS STRENGTH AND ENDURANCE.The use of unidirectional and multidirectional carbon fibre in the Ultra-Hollow structure gives the cranks rigidity and lightness. ESP (Enhanced Shifting Performance) ACTUATION SYSTEM technology ensures precision and speed when shifting.We have redesigned the tooth profile to optimize 11-speed operation. Our studies led to the ESP (Enhanced Shifting Performance) ACTUATION SYSTEM, specially developed to improve s

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