Box One Prime 9 Speed X-Wide Groupset

Box hit the market for a six when they unveiled the wide-range Prime 9 families of components. 454% range in a compact 9-speed package was unheard of until now! Box One is the top of the range drivetrain with all the bells and whistles. A full unibody steel cassette weighing only 365g, adjustable clutched derailleur and a dual DLC nickel-plated chain make this the flagship 9-speed option from Box.

Compatibility: The Prime 9 component range is not currently rated for use with e-bikes.

All Prime 9 components are cross-compatible with other levels across the range. All of these components can be purchased separately if you want to mix and match with other Box Prime 9 parts. 

Each kit includes the following Box One components:

• Box One Prime 9 derailleur. 
• Box One Prime 9 chain. 
• Box One Prime 9 cassette. 
• Box One Prime 9 shifter (cable included).

Box One Prime 9 derailleur:

• Prime 9-speed. 
• 290g
• Forged alloy cage, stainless steel and nylon composite
• Compatible with all 9-speed Prime 9 components. 
• 50T max tooth size. 
• Precision sealed bearing pulleys, Adjustable Tri-Pack Limited Slip Clutch, Carbon-Nylon Composite Knuckle

Compatible with standard derailleur hangers only (not compatible with Direct-Mount hangers)

Box One Prime 9 Trigger Shifter:

• 130g. 
• 9-speed Prime 9 only. 
• Compatible with all Box Prime 9 derailleurs. 
• Glass Fibre/Nylon composite, Steel and aluminium alloy
• Includes shifter cable and clamp.
• Single and multi-shift options available

Box One Prime 9 Chain:

• 350g
  
• Dual-coated DLC and nickel plating. 
  
• Solid pins
  
• Compatible with Prime 9 cassettes only.
  

Box One Prime 9 Cassette:

• 365g.
• 454% range
• Steel unibody lightweight construction with an alloy internal support disc
• 9-speed, 11-50t
• 11, 13, 15, 18, 22, 28, 34, 42, 50T.
• Compatible with all Box Prime 9 components. 
• HG Freehub compatible.