New 2024 Campagnolo RECORD 12S Rear Derailleur : RD20-RE124. Designed to improve performance and function in every aspect, the new Campagnolo Record 12 Speed mechanical rear derailleur has an innovative shape that envelopes the sprockets better thanks to 3D Embrace technology, creating a double effect: allowing the chain to maintain optimum traction at all times, thus increasing the speed, power…