Rear Derailleur Shimano-R9250 REAR DERAILLEUR DURA-ACE Di2 12-SPEED 2025 making them a perfect product

making them a perfect product to clean and remove Secret Chain Lube

A 72mm reach and 125mm drops make for smooth and natural transitions as an 11 degree flare increases control

Ride faster

delivers unmatched aerodynamic efficiency and control

Chainring material: Aluminum

Rear Derailleur Shimano-R9250 REAR DERAILLEUR DURA-ACE Di2 12-SPEED 2025 making them a perfect productThe 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 Our fastest ever rear shifting, 58% faster than RD R9150