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.
Box Three Prime 9 Speed X-wide Groupset - Single Shift - 12-50t
Price
$349.95
Product information
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.