Box Components Three Expert Rear Hub

The Box Three Expert Rear Hub is a lightweight version of the Pro sized and still offers a super-fast 4-Pawl system and precision sealed bearings but uses aluminium axles, a smaller hub shell, and lightweight hardware; for the smaller riders who like to go fast! Hub includes Steel Bolts, Lockring, and Spacers.

Box Components Three Expert Rear Disc Hub

The Box Three Expert Disc Rear Hub is a lightweight version of the Pro sized and still offers a super-fast 4-Pawl system and precision sealed bearings but uses aluminium axles, a smaller hub shell, and lightweight hardware; for the smaller riders who like to go fast! Hub includes Steel Bolts, Lockring, and Spacers. 28 Hole

Box Components Four 8-Speed E-bike Cassette

The Box Four E-Bike Cassette offers high gears with more teeth to withstand the rigours of modern E-Bike riding. Adding an extra tooth to each of the three highest gears provides increased durability and decreased wear by distributing the load over a larger area! Box Four adapts our Prime 9 philosophy of durability, simplicity, and reliability at a great price point. All sprockets are stamped from steel, given our durable black coating and then the larger sprockets are pinned to each other with spacers for easy installation.