The new RD-R9250 derailleur is Shimano's fastest ever shifting electronic derailleur capable of shifting under heavy loads for a sprint-winning edge.
The DURA-ACE RD-R9250 integrates the system charging port and a wireless connectivity unit all while delivering super fast, precise shifting worth of any podium. A single cage length that is compatible with 28-34T low sprockets brings new versatility to the world's best road component group.
Fastest ever rear shifting, 58% faster than RD-R9150
Compact design includes an integrated wireless unit, charger, and switch