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This is the fulcrum of the 11-speed systems. The 11-speed rear derailleur has a forged aluminium upper body which works on an enveloping and oversized carbon fibre outer plate. The new form confers torsional rigidity which is 150% greater than the old design and contributes to the construction of a parallelogram with absolute operating precision. The cage pulleys are now made of a lighter material and reduce vibrations.
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upper body made of forged aluminium.
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light alloy and carbon fibre cage.
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pulleys with ceramic technology movement.
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titanium screws and adjusters.
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