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Product Description:
Record 11 speed rear derailleur features greater stiffness and durability with less weight than previous Record. All this is obtained by redesigning the parallelogram and using just the right blend of carbon and alloy parts. Provided with a carbon fiber outer plate which increases rigidity by 150%. The pulleys are fitted on an alluminum and carbon cage and turn on ceramic bearingsLighter rubber pulleys are quieter. Titanium screws and adjusters. Ceramic pulley bushing and bearings. 31 tooth capacity. 27 tooth max sprocket. 55mm upper to lower pulley axle. 11 speed compatible only. 181 grams. 
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