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Box Three Prime 9 Speed Groupset

Box Three Prime 9 Speed Groupset

Option:
11-50T X-Wide - Multi Shift
Cranks Included:
No
Speeds:
9 Speed
Suits Frame Spacing:
Any
Suits Freehub Type:
Shimano HG
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5.0
Rated 5.0 out of 5 stars
1 Review

Regular price $319.95
Regular price Sale price $319.95
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The Prime 9 range of components from Box has made many people rethink what a 9-speed drivetrain is capable of. Providing riders with all the range of a 12-speed setup but without the complexity, weight, and excessive shifting, Prime 9 drivetrains are also far more affordable. You can ride them hard and not shed so many tears when something inevitably wears out or breaks.

Box Three is their best all-rounder drivetrain that offers excellent performance and durability at a wallet-friendly price point.

Single-shift groupsets have been designed with e-bikes in mind and feature a 12T smallest cog rather than the 11T found on the multi-shift options.

Who's this item for: This is for riders looking for all the same range as a 12-speed setup with the simplicity and weight savings of a 9-speed setup. It's a great choice for those wanting to bring an older 2x/3x drivetrain bike into the 12 century without needing to re-mortgage the house.

Compatibility: Single-shift groupsets have been designed with e-bikes in mind and feature a 12T smallest cog rather than the 11T found on the multi-shift options.

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.

Works with 10,11, or 12-speed Shimano, SRAM, and most other brands' narrow/wide chainrings (you must use a Prime 9 chain).

Each Box Three groupset includes the following components:

  • Box Three Prime 9 Speed Twin Lever Shifter
  • Box Three Prime 9 Speed Derailleur
  • Box Three Prime 9 Speed Chain
  • Box Three Prime 9 Speed Cassette

Rear derailleur Specifications:

  • Number of gears: 9 speed
  • Weight: 349g
  • Materials: Constructed from both aluminium, glass fibre/nylon composite and steel with a matte black finish.
  • Chain and cassette compatibility: Compatible with Prime 9 chains and cassettes.
  • Max cassette range: 11-50t, or 11-46t depending on the option selected.
  • Clutch style: Limited-slip clutch. Non-adjustable
  • Cage length: Available in Wide (46t max), or X-Wide (50t max) cage lengths

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

Shifter / Remote Specifications:

  • Number of gears: 9 speed
  • Trigger action: Single or multi-shift depending on the option selected.
  • Weight: 135g
  • Materials: Glass fibre, nylon composite, steel.
  • Mount style: 22.2mm bar clamp (non-hinged).
  • Shifter cable: Comes with a stainless steel shifter cable included.

Chain Specifications:

  • Number of gears: 9 speed
  • Compatible with 10,11, or 12-speed Shimano, SRAM, and most other brands' narrow/wide chainrings.
  • Weight: 312g
  • Materials/Construction: Hardened alloy steel. Solid pin construction.
  • Quick joining link: Yes, a quick link comes included with the chain.
  • Number of links: 126 links

Cassette Specifications:

  • Number of gears: 9 speed
  • Weight: 545g (11-46t), 660g (11-50t)
  • Materials / construction: Stamped steel cogs with the largest ones pinned to a steel spider.
  • Freehub mounting style: Shimano style HG only

Cog-tooth span:

  • 11-46t: 11 - 13 - 15 - 18 - 22 - 28 - 34 - 40 - 46
  • 11-50t: 11 - 13 - 15 - 18 - 22 - 28 - 34 - 42 - 50
  • 12-46t: 12 - 14 - 16 - 18 - 22 - 28 - 34 - 40 - 46
  • 12-50t: 12 - 14 - 16 - 18 - 22 - 28 - 34 - 42 - 50
View product description
5.0
Rated 5.0 out of 5 stars
Based on 1 review
Total 5 star reviews: 1 Total 4 star reviews: 0 Total 3 star reviews: 0 Total 2 star reviews: 0 Total 1 star reviews: 0
100%would recommend this product
1 review
  • Nick V.
    Verified Buyer
    I recommend this product
    Rated 5 out of 5 stars
    12 seconds ago
    Spot on

    Great set, easy to install, perfect to upgrade to a 1x and works a treat.

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