Chorus 11 speed39s shifting precision is comparable to its older record and super record siblingsthe design and geometry of the rear derailleur are exactly the same the only difference lies in the materials used which made it possible to keep a favourable price without lowering performance levelsa groupset dedicated to competition as the chorus 11x is shows off its carbon fibre front platetechnical specificationsupper to lower pulley axle 55 mmcomposite outer plateparallelogram with 11x