Box Prime 9 groupset

Our Box One tier is for those of you who just aren't satisfied with anything but the BEST! You like to get up there where the air is thin and the details matter. Every single cog on the 11-50T cassette is steel, yet it barely tips the scale at 360 grams; along with the chain, its surface is Dual-coated with DLC + Nickel and is both beautiful and durable. Your thumb will push a textured die-cast lever on a shifter that's had its hinged clamp whittled away by our CNC machines. Let's finish this package off with a derailleur that flaunts a Fully Adjustable Tri-Pack™ Clutch and super-smooth sealed bearing pulleys. Pamper yourself a little; you know you deserve it.

Groupset: Cassette, Rear derailleur, Front shifter, Chains.

Cassette: 1pc machined - cogs 11 - 13 - 15 - 18 - 22 - 28 - 34 - 42 - 50 - 365g


  • Prime 9™ Technology
  • Includes Our Simplest & Best Performing Cassette
  • Ultra-Wide Ratio with Consistent Progression
  • Durable Lightweight Unibody Construction Cassette
  • Shifter offers 2 pc Pull Lever / Up to 3 Gears Per Shift


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Corvid-19 Update

Like much of the world, our daily life has been changed by COVID-19. In an effort to help limit the impact on our local community, Kingdom employees will be working remotely. For the time being, all production is continuing as normal, all current and any new orders are running on time and in the normal production window. We will contact you before we ship to confirm that you country is not on full lockdown and that you can still receive your order.

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