SHIMANO Dura Ace Di2 rear derailleur RD-R9250 Shadow+

The compact Dura-Ace 9250 rear derailleur delivers lightning-fast yet precise shifting. Even under medium and high loads, the low-profile design and Shimano Shadow+ technology ensure quick and quiet gear changes. There's no noisy clunking or rattling with these high-tech components! Despite its slim dimensions, the derailleur houses the battery charging port and the wireless mode button. Using a single cage length, the derailleur shifts on cassettes from 11-28 teeth to 11-34 teeth, further enhancing the versatility of the Japanese manufacturer's top-of-the-line component group. The integrated carbon composite derailleur cage ensures maximum weight reduction.


Technical specifications:

Material: Aluminum, carbon composite
Version: 12-speed
Compatibility: Shimano Dura Ace ST-R9250, ST-R9270 shifters
Total capacity: 37 teeth
Max. front chainring difference: 16 teeth (difference between smallest and largest chainring)
Max. largest sprocket: 34 teeth
Min. largest sprocket: 28 teeth
Max. smallest sprocket: 11 teeth
Min. smallest sprocket: 11 teeth
Mounting: Direct mount
Color: Black, anthracite

Manufacturer's weight: 215g