BOX TWO ALLOY SEALED INTEGRATED 1-1/8" HEADSET BLACK

Product Overview

The Box Two Alloy Sealed Integrated Headset is a threadless integrated headset designed for BMX frames with 1-1/8" steerer tubes and integrated headset cups. Featuring CNC-machined aluminum bearing covers, precision sealed 45x45 bearings, and a split crown race, this headset provides smooth steering with reduced maintenance. The integrated design eliminates external headset cups for a clean, low-profile appearance.

Key Features

• Integrated headset design – Bearings sit directly in machined cups integrated into the frame's head tube, eliminating external pressed cups
• Precision sealed bearings – 45x45 degree sealed cartridge bearings provide smooth rotation while protecting against dirt and moisture
• CNC-machined aluminum bearing cover – Machined top cap provides precise bearing retention and clean appearance
• Split crown race – Separable lower race simplifies installation without requiring fork removal
• Aluminum compression cap – Threaded top cap applies headset preload through the steerer tube
• Anodized finish – Black anodized components with laser-etched graphics resist corrosion

Technical Specifications

• Headset type: Integrated (internal bearing cups)
• Steerer tube size: 1-1/8" (standard threadless)
• Bearing angle: 45° x 45°
• SHIS standard: IS 42/28.6 | IS 42/30
• Material: 6061-T6 aluminum (bearing covers, compression cap)
• Bearing type: Precision sealed cartridge bearings
• Finish: Black anodized with laser-etched graphics
• Recommended compression cap torque: 1.5 Nm
• Weight: 85g (3.0 oz)
• Origin: Designed in USA, made in Taiwan

Compatibility and Ideal Use Cases

This headset fits BMX frames with integrated headset cups and 1-1/8" steerer tubes that meet the IS 42/28.6 or IS 42/30 SHIS standards—the most common integrated headset standard for modern BMX bikes. Not compatible with frames requiring external pressed headset cups (standard or zero-stack headsets) or frames with different head tube internal diameters. Verify your frame has integrated headset cups and measures 42mm internal diameter at the bearing seats before ordering. Works with 1-1/8" threadless forks and stems.

Best suited for riders with modern BMX frames featuring integrated headset designs who need a replacement headset or are building a new bike. The integrated design provides a clean, low-profile look and reduces overall stack height compared to external cup headsets. The sealed bearings resist contamination and require less frequent maintenance than loose ball or unsealed bearing systems—ideal for riders in wet, muddy, or dusty conditions. The split crown race simplifies installation by eliminating the need to remove the fork crown to install the lower race. The 45x45 bearing angle is standard for BMX applications, providing adequate load distribution for steering and landing forces. Installation: Integrated headsets require precise frame machining—ensure your frame's headset cups are clean, undamaged, and properly faced (parallel). Apply a thin layer of grease to bearing contact surfaces during installation. Set headset preload using the compression cap and top bolt—tighten until bearings are snug with no play, but do not overtighten (recommended 1.5 Nm torque). After tightening the stem, the compression cap should spin freely, indicating proper preload without binding. Check headset adjustment regularly, especially after initial installation.