BOX ONE HUB LOCK RING

Product Overview

The Box One Hub Lock Ring is a CNC-machined aluminum replacement for the standard steel cassette lockring found on Shimano-compatible freehub bodies. Extruded from 6061-T6 aluminum and anodized in multiple colors, this lockring secures the cassette cog to the hub driver while reducing weight compared to the stock steel version.

Key Features

• 6061-T6 aluminum construction – CNC-machined from extruded aluminum alloy reduces weight compared to standard steel lockrings
• Shimano-compatible threading – Direct replacement for standard steel lockrings on Shimano-compatible cassette hubs and drivers
• Anodized finish – Available in multiple anodized colors (red, blue, gold, black) for visual customization
• Lightweight design – At 7 grams, saves weight over stock steel lockrings while maintaining secure cog retention

Technical Specifications

• Material: 6061-T6 aluminum, CNC-machined
• Outside diameter: 43.6mm
• Weight: 7g (0.25 oz)
• Compatibility: Shimano-compatible cassette hubs and drivers
• Finish: Anodized (red, blue, gold, or black)

Compatibility and Ideal Use Cases

This lockring fits any BMX cassette hub or driver that uses Shimano-compatible threading—the industry standard for most cassette hubs. Verify your hub uses a threaded lockring (not a splined lockring or different thread standard) before ordering. Works with single-speed cassette cogs commonly used on BMX bikes.

Best suited for riders looking to reduce weight and add visual customization to their cassette hub setup. The aluminum construction saves grams over steel while maintaining secure cog attachment when properly installed. Important: Aluminum is softer than steel—exercise care during installation to avoid cross-threading or stripping. Use a proper lockring tool and apply appropriate torque (do not overtighten). Ideal for weight-conscious racers or riders who want color-matched components. Check lockring tightness periodically, especially after initial installation, as aluminum may settle differently than steel under load. Not recommended for riders who frequently swap cogs or prefer the added durability margin of steel lockrings.