BOX Three Prime 9 X-Wide Rear Derailleur - 1x9-speed

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  • Regular price $86.95
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BOX Three Prime 9 X-Wide Rear Derailleur - 1x9-speed

The Box Three Rear Derailleur simplifies the features found on the Prime 9 Box One and Two rear derailleurs making for a fully featured wallet friendly rear derailleur. Including a Limited Slip Clutch, Sealed bearing pulleys and a solid construction Box Three Rear derailleurs are compatible with 11-46 and 11-50t cassettes, making it one of the most versatile derailleur offerings in the Prime 9 lineup.

Key Features:

  • BOX's Our Best All-Rounder Derailleur
  • For Light/Medium Terrain
  • Limited Slip Clutch™
  • Bearing Pulleys
  • Nylon Composite Knuckle
  • Direct Channel Cable Stay
  • Die Cast Linkages
  • Stamped Inner and Outer Cage
  • Compatible with Traditional Derailleur Hangers (Non Direct-Mount)
  • Prime 9 Technology™


  • Materials: Aluminum, Glass Fiber / Nylon Composite, Steel
  • Finish: Matte Onyx
  • Weight: 349g/12.3oz

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