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
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
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- Nick V.Verified BuyerI recommend this productRated 5 out of 5 stars12 seconds agoSpot on
Great set, easy to install, perfect to upgrade to a 1x and works a treat.
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