BOX One Prime 9 X-Wide Rear Derailleur

• Adjustable Tri-Pack? Limited Slip Clutch for exceptional chain tension and stability
• Clutch force can be adjusted to give you the ability to tune your setup to the desired balance of shifter feel and chain retention
• Impact-resistant, spring-loaded Pivot-Tech? cable stay helps keep the cable, housing and you out of harm's way
• Constructed with a forged aluminum cage, 3D forged aluminum linkages and a carbon-nylon composite knuckle for lightweight performance
• Optimized for a 11 C50T cassettes
• Designed for use with standard derailleur hangers (not direct mount)

Imported.