Box One Single-Speed Chromoly Cog The Box One Single-Speed Chromoly Cog is designed for BMX racers and riders seeking maximum durability, reliable drivetrain performance, and long service life under heavy sprint loads. Precision CNC machined from durable chrome-molybdenum steel, this cog delivers excellent wear resistance and dependable engagement for high-performance BMX race applications. Designed to fit Shimano™ HG-compatible cassette hubs, the cog features a widened 5mm inner base to create a stronger and more stable interface with the freehub body, improving load distribution and reducing freehub wear during powerful acceleration efforts. Specifications: Material: Chromoly Steel Manufacturing: CNC Machined Compatibility: Driver: Shimano HG-compatible cassette hubs Chain Compatibility: Single-speed BMX drivetrains Features: Durable chromoly steel construction Precision CNC-machined design Long-wearing race-ready performance Wide 5mm inner base for improved freehub support Improved drivetrain stiffness and load distribution Excellent durability for BMX racing and high-torque applications
