Gap30 Cycles is your source for quality bicycle parts and accessories at great prices. Campagnolo Chorus Rear Derailleur – 12-Speed. The Campagnolo Chorus 12-speed rear derailleur features 3D Embrace technology and 12-tooth pulley wheels making it suitable for all cassettes as the distance stays optimum on each individual sprocket, regardless of the cassette selected. Embrace technology not only keeps the rear derailleur vertically aligned in the perfect position for each sprocket, it now makes the upper pulley wheel advance perfectly in the direction the bike is advancing. On rough roads, the spring positioned between the upper body and the pivot absorbs the vibrations, ensuring the chain always rests properly on the sprockets. The pulley wheels on the 12-tooth derailleur cage allow the chain to move more smoothly. The initial position of the rear derailleur can be adjusted to suit any cassette. The rear derailleur is positioned further back, making it easier to slide the wheel out and replace it. Upper and lower body crafted from technopolymer that is reinforced with long carbon fiber for exceptional durability. Campy 12-Speed Chorus/Record/Super Record 2019+. Rear Derailleur Mount Type. Chain Wrap Capacity (teeth). Our motto is’All Riders, No Attitude! We’re here to provide friendly and personal service for all cyclists. We guarantee your satisfaction and stand behind everything we sell. Thanks for your business and enjoy the ride! Please do not leave negative or neutral feedback for cancelled orders. We want to ensure your satisfaction. Please be sure to include your contact information and order number. Please include your contact information and order number. Gap30 Cycles does not sell or market customer information to other businesses or organizations. We are constantly striving to improve our service and would love to hear your comments. Before returning your order. No return credit will be given if an item is in used condition, has been installed, or has missing or damaged retail packaging.