"Shimano (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 groupset.
 
Compatible with EW-EC300 charging cable
Average weight: 215 g"
 
- Shimano