Box One Single Speed Alloy Cogs

Box One Single Speed Alloy Cogs

Product Overview

The Box One Single Speed Alloy Cogs are lightweight 7075-T6 aluminum sprockets designed for Shimano-compatible cassette hubs. Available in 13T–18T with anodized black finish and 5mm wide inner base, they provide ultra-lightweight performance for weight-optimized single-speed BMX drivetrains.

Key Features

• 7075-T6 Aluminum Construction – Aerospace-grade alloy provides strength with minimal weight
• Shimano-Compatible Driver – Works with standard Shimano cassette hub shells for straightforward installation
• 5mm Wide Inner Base – Thicker base interface provides solid engagement with cassette body; resists slippage
• Ultra-Lightweight Design – Aluminum construction dramatically reduces rotational weight (8–18g depending on tooth count)
• 3/32" or 1/8" Chain Compatible – Works with both narrow and wide single-speed chain widths
• Anodized Black Finish – Protective coating resists corrosion and provides clean aesthetic
• Laser-Etched Logos – Durable branding without added weight
• Multiple Tooth Options – Available in 13T, 14T, 15T, 16T, 17T, or 18T for gearing flexibility
• Racing-Focused Design – Minimal weight ideal for competitive BMX racing builds
• Professional Component – Suitable for serious racers prioritizing weight reduction

Technical Specifications

• Material: 7075-T6 aluminum alloy
• Driver: Shimano-compatible cassette type
• Chain compatibility: 3/32" or 1/8"
• Inner base width: 5mm
• Tooth count options: 13T, 14T, 15T, 16T, 17T, 18T
• Finish: Anodized black with laser-etched logos
• Weight by tooth count:
  • 13T: 8g (0.3 oz)
  • 14T: 11g (0.4 oz)
  • 15T: 13g (0.5 oz)
  • 16T: 14g (0.8 oz)
  • 17T: 16g (0.6 oz)
  • 18T: 18g (0.65 oz)

Compatibility & Ideal Use Cases

• Shimano Cassette Hubs – Compatible with Shimano-compatible cassette hub shells; verify your hub type before ordering
• Weight-Optimized Racing – Ultra-lightweight aluminum ideal for competitive racing builds
• Single-Speed BMX – Purpose-built for high-performance single-speed drivetrains
• Fixed-Gear Setups – Works with fixed-gear conversion hubs using Shimano cassette interface
• Chain Width Flexibility – Compatible with both 3/32" (narrow) and 1/8" (wide) chains
• Racing Applications – Lightweight construction reduces rotational mass for sprint acceleration
• Gearing Options – 13T (tall gear for speed) through 18T (lower gear for acceleration) accommodate riding preferences
• Serious Racers – Aluminum construction for riders prioritizing every gram of weight reduction
• Professional Applications – Suitable for competitive and elite-level BMX racing

Build Requirements & Compatibility

• Shimano Cassette Hub Required – Must have compatible Shimano cassette hub shell (not threaded freewheel)
• Chain Selection – Choose 3/32" or 1/8" chain width matching your drivetrain
• Tooth Count Selection – Select based on desired gearing: smaller teeth (13T–14T) for speed, larger teeth (17T–18T) for acceleration
• Proper Installation – Slide cog onto cassette hub and secure with locking ring or cassette locknut
• Chain Alignment – Verify chain runs true and doesn't rub on frame or wheel
• Weight Verification – Confirm cog weight in build planning for racing setups

Important Notes

• Ships direct from manufacturer in USA; may ship separately from other orders
• Shimano-compatible only; not compatible with threaded freewheel hubs
• 7075-T6 aluminum provides strength with dramatic weight savings versus steel cogs
• 5mm inner base wider than standard, providing solid interface and reducing slippage
• Ultra-lightweight design; weights 8–18g—ideal for gram-counting racing builds
• Tooth count selection critical: 13T–15T for speed, 16T–17T balanced, 18T for acceleration
• Compatible with both 3/32" and 1/8" chain widths; verify your chain width before purchasing
• Anodized black finish resists corrosion and provides professional appearance
• Laser-etched logos provide durable branding without weight penalty
• Professional-grade component for serious racing and weight optimization
• CNC precision machining ensures consistent tooth profile and engagement
• 7075-T6 aluminum is aerospace-grade; maintains strength despite minimal weight
• Verify your hub is Shimano-compatible cassette type (not threaded freewheel style)
• Ideal for competitive racers prioritizing rotational weight reduction