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