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Box Four 8 Speed Wide Rear Derailleur

Box Four Derailleur.png

The Box Four Rear Derailleur is the base of Prime 9 Technology that offers an affordable clutch based 1 by 8-speed derailleur that is simple and light; this makes it a perfect candidate for every entry-level bike that traditionally has a 3 by drive-train that is neither durable nor user friendly. 


  • Our 8 is Enough Derailleur

  • Limited Slip Clutch™

  • Bearing Pulleys

  • Nylon Composite Knuckle

  • Direct Channel Cable Stay

  • Die-Cast Linkages

  • Stamped Inner and Outer Cage

  • Compatible with Standard Derailleur Hangers (Non Direct-Mount)


  • Box Four 8 Speed Shifter Black

  • Box Four 8 Speed 116 Link Chain Natural

  • Box Four 8 Speed 11-42T  and also 12-42T eBike Cassette Black

  • Box Four 8 speed Wide/Narrow Chainring 104BCD 32T Black


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