Shimano rear derailleur Dura-Ace Di2 RD-R9250 12-speed

The Shimano Dura Ace Di2 RD-R9250 rear derailleur for 12-speed shifting systems sets new standards in terms of precision, speed and reliability. Developed for maximum performance in the professional road bike sector, this electronic rear derailleur enables lightning-fast and extremely precise gear changes in every situation. The compact Shadow design ensures better aerodynamics, reduces the risk of damage and offers outstanding stability in all riding conditions. Thanks to the innovative Di2 technology, you always get clear and defined gear changes with minimal effort. The RD-R9250 rear derailleur supports cassettes with up to 34 teeth and therefore offers maximum flexibility on a wide range of terrain. Its slim, high-quality design emphasises the premium quality of the Dura Ace series and makes it the ideal choice for ambitious cyclists who demand the highest standards of performance, appearance and reliability.