Shimano Rear Derailleur Dura Ace RD-R9250 Di2 12s Max 34T

Description:

The DURA-ACE RD-R9250 Di2 rear derailleur combines a built-in charging port and wireless connectivity with fast, precise 12-speed shifting. Its single cage length supports cassettes from 11-30T to 11-34T, adding versatility to a top-tier road groupset.

Specifications:

• Compact SHADOW design includes an integrated wireless unit, charger, switch and LED status indicator.
• Wider range capacity: compatible with 11-30 and 11-34T 12-speed cassettes
• Fastest ever rear shifting, 58% faster than RD-R9150
• Integrated D-FLY Connectivity
• Maximum low sprocket: 34T