Box Components
One Prime 9-Speed X-Wide Rear Derailleur

The Box One Prime 9 Rear Derailleur takes the advantages of our legacy 9-speed drive-train but adds the advancements of a modern 1 by; a fully adjustable Tri-Pack™ Clutch, and an x-wide cage optimized for an 11-50T cassette. Forged construction steps up the durability and performance to an unparalleled level. Suited for the most demanding terrain. 

Features:

• Our Best Performing Derailleur
• For Aggressive Terrain
• Adjustable Tri-Pack™ Limited Slip Clutch
• Precision Sealed Bearing Pulleys
• Pivot-Tech™ Cable Stay

Compatibility:

Box One Prime 9 11-50T and also 12-50T eBike Cassette Black
Box Two Prime 9 11-50T and also 12-50T eBike Cassette Black
Box Three Prime 9 11-50T and also 12-50T eBike Cassette Black
Box One Prime 9 Chain 126L DLC Black
Box Two Prime 9 126 Link Chain Nickel
Box Three Prime 9 126 Link Chain Polished
Box One Prime 9 Shifter Black
Box Two Prime 9 Shifter Black
Box Three Prime 9 Shifter Black

Specification:

Process/Material:

• B-Knuckle: 3D Forged / Aluminum
• P-Knuckle: Injection Molded / Carbon-Nylon Composite
• Linkages: 3D Forged / Aluminum
• Cage: Forged / Aluminum

Finish: Gloss Hard Onyx
Speeds: 9
Cable: Box One Slick Coated
Compatibility:

• Platform
• Ebike
• Non-Ebike
• Shifter
• Box Two Prime 9
• Box Three Prime 9

Derailleur Hanger: Non-Direct Mount
Weight: 290g/10.2oz