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Box Three Prime 9 Speed Groupset

Box Three Prime 9 Speed Groupset

4.7
Rated 4.7 out of 5 stars
10 Reviews

Regular price $192.95–$319.95
Regular price Sale price $192.95–$319.95

SKU:

Option Suits Frame Spacing Suits Freehub Type Speeds Cranks Included Price Add to Wishlist
11-46T Wide - Multi Shift Any Shimano HG 9 Speed No
Regular price $192.95
Regular price $315.00 Sale price $192.95
SKU: 639266097471
11-50T X-Wide - Multi Shift Any Shimano HG 9 Speed No
Regular price $319.95
Regular price Sale price $319.95
SKU: 639266097488
12-46T Wide - Single Shift Any Shimano HG 9 Speed No
Regular price $314.95
Regular price Sale price $314.95
SKU: 639266097372
12-50T X-Wide - Single Shift Any Shimano HG 9 Speed No
Regular price $319.95
Regular price Sale price $319.95
SKU: 639266097389
11-46T Wide - Multi Shift
No
9 Speed
Any
Shimano HG

Regular price $192.95
Regular price $315.00 Sale price $192.95

11-50T X-Wide - Multi Shift
No
9 Speed
Any
Shimano HG

Regular price $319.95
Regular price Sale price $319.95

12-46T Wide - Single Shift
No
9 Speed
Any
Shimano HG

Regular price $314.95
Regular price Sale price $314.95

12-50T X-Wide - Single Shift
No
9 Speed
Any
Shimano HG

Regular price $319.95
Regular price Sale price $319.95

Description

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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Product Reviews

4.7
Rated 4.7 out of 5 stars
Based on 10 reviews
Total 5 star reviews: 9 Total 4 star reviews: 0 Total 3 star reviews: 0 Total 2 star reviews: 1 Total 1 star reviews: 0
90%would recommend this product
10 reviews
  • Tony T.
    Verified Buyer
    I recommend this product
    Rated 5 out of 5 stars
    7 months ago
    Great up/down grade from 11sp

    I have an EMTB and 11 speeds are just too many.

    You end up shifting up/down multiple gears at once, so I changed to 9sp.

    So much better!

    Less shifting and the next is more appropriate for the bikes speed and power.

    I love it!

  • Michael W.
    Verified Buyer
    I recommend this product
    Rated 5 out of 5 stars
    9 months ago
    Clean, crisp gear gear changes. Can't complain.

    This groupset is a great value for money option. I bought it to replace my Norco Storm 4 3x7 group set to this 1x9. I had a spare freehub from an 8x bike to fit the 1x9 cassette. It will take a little extra effort to fine tune the shifts, but well worth it. Box three has a great instructional video on how to install and tune.

  • Skippy
    Verified Buyer
    I recommend this product
    Rated 5 out of 5 stars
    1 year ago
    Lots of bang for buck!

    I got this group set to upgrade the drivetrain on my dear grom daughters bike. Shes getting bigger and just needed the lower gears to get herself up the hills. The Box 3 groupset was easy to install and adjust. Im impressed to the point that Ill look into a Box set when my own Mtb Drivetrain is in need of replacement.

  • Brian n.
    Verified Buyer
    I recommend this product
    Rated 5 out of 5 stars
    1 year ago
    Prime 9 box three

    Once again an awesome product, very easy install, perfect gear changing once the limiters were set and great value for money!!!!

    packaging and delivery times were exceptional as always

  • Kevin
    Verified Buyer
    I recommend this product
    Rated 5 out of 5 stars
    1 year ago
    Wide range 9 speed is all you need

    Cant believe how well this groupset works . I really dont see the need for for any more range . Amazing price point

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