Browsing Rear Derailleurs from BOX

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BOX Prime 9 Rear Derailleur
  • Prime 9 Technology for less derailleur travel and better chainline. Less wear and improved lifespan
  • Box One features: Adjustable Tri-Pack limited slip clutch, forged inner and outer cage, Pivot-Tech cable stay, sealed bearing pulleys and 3D forged linkages
  • Box Two features: Tri-Pack limited slip clutch, forged inner and outer cage, Pivot-Tech cable stay, sealed bushing pulleys and 3D forged linkages
  • Box Three features: Limited Slip Clutch, stamped front/rear cage, direct channel cable stay and bearing pulleys
  • Box Four features: 8 speed with Prime 9 technology and the same construction as Box Three
  • Limited Lifetime Warranty
  • 3rd party web sales must be an Authorized Dealer
 
item # model speed cage min/max weight color in stock?
  BX5304 Box One Prime 9 9 X-wide 11/50t 290g black NO
  BX5344 Box Three Prime 9 9 X-wide 11/50t 290g black YES
  BX5362 Box Four Prime 9 8 wide 11/42t 290g black YES