Box One Prime 9 11-50T Cassette Black - boxcomponents
Box One Prime 9 X-Wide 11-50T Cassette Black - Box®
Box One Prime 9 X-Wide 11-50T Cassette Black - Box®
Box One Prime 9 X-Wide 11-50T Cassette Black - Box®
Box One Prime 9 X-Wide 11-50T Cassette Black - Box®
Box One Prime 9 X-Wide 11-50T Cassette Black - Box®
Box One Prime 9 X-Wide 11-50T Cassette Black - Box®
Box One Prime 9 X-Wide 11-50T Cassette Black - Box®
Box One Prime 9 X-Wide 11-50T Cassette Black - Box®
Box One Prime 9 11-50T Cassette Black - boxcomponents
Box One Prime 9 X-Wide 11-50T Cassette Black - Box®
Box One Prime 9 X-Wide 11-50T Cassette Black - Box®
Box One Prime 9 X-Wide 11-50T Cassette Black - Box®
Box One Prime 9 X-Wide 11-50T Cassette Black - Box®
Box One Prime 9 X-Wide 11-50T Cassette Black - Box®
Box One Prime 9 X-Wide 11-50T Cassette Black - Box®
Box One Prime 9 X-Wide 11-50T Cassette Black - Box®
Box One Prime 9 X-Wide 11-50T Cassette Black - Box®

Box One Prime 9 X-Wide 11-50T Cassette

$399.99 Sale Save
Size 11-50T
Color Black

Only 0 left in stock

SKUBX-CS1-P9A1150-BK

The Box One cassette its a piece of art that brings together all the virtues of the Prime 9 philosophy and distills them into what we feel is our most defining product to date. A unique machined all-steel unibody lattice and alloy support disc have netted us a high-performing, simple, durable and lightweight cassette. With only 350 grams of weight we know that this is what the riders need. Enjoy the simplicity of ride this piece of history. 

Please see page 6 of our guide for notes regarding the 2 HG drivers.


Our Best Performing Cassette
Steel Lightweight Unibody Construction
Lightweight Alloy Internal Support Disc
Ultra-Wide Ratio with Consistent Progression
Durable Dual-Coating DLC & Nickel Protection
Cassette Compatible with HG Freehub Bodies
Prime 9 Technology™

Box One Prime 9 Chain 126L DLC Black
Box Two Prime 9 126 Link Chain Nickel
Box Three Prime 9 126 Link Chain Polished
Box One Prime 9 Rear Derailleur
Box Two Prime 9 X-Wide Rear Derailleur Black
Box Three Prime 9 X-Wide Rear Derailleur Black
Box One Prime 9 Shifter Black
Box Two Prime 9 Shifter Black
Box Three Prime 9 Shifter Black

Material Acetal, 7075-T6 Aluminum, Chromoly Steel
Gears 11 - 13 - 15 - 18 - 22 - 28 - 34 - 42 - 50
Weight 365g /12.8oz

What is the difference between the Wide and X-Wide?
A: The Wide cassette offers an 11-46T range while the X-Wide offers an 11-50T range.

Will the Box One Prime 9 Cassette fit on an wheel with a Sram XD Driver?
No this will only work with a HG splined Shimano 9-10-11 speed freehub body.

Is the Box One Prime 9 Cassette compatible with other 9 speed drivetrains?
No, The Box one Prime 9 Cassette is optimized for Box Prime 9 drivetrains and running other component variations can result in poor performance.

How should I clean my Box One Prime 9 Cassette?
We suggest removing the cassette from the wheel and using a soft bristle brush with soapy water or a mild de-greaser. We do not recommend pressure washing, strong solvents or de-greasers as they could degrade the surface coating.

Will Box be making cassettes compatible with XD or Microspline driver bodies?
At this time our cassettes are only compatible with HG style MTB 8/9/10 speed or road 11 speed driver bodies. Most hub manufacturers offer the different