PROMAX PI-1 external Headset 1"

The PI-1 Alloy 45×45 headset has an aluminum top cap, upper bearing cover, lower race and upper and lower cups. All-aluminum construction results in a lightweight headset. Each headset is fitted with super-smooth rolling, precision, 45×45 angular-contact sealed bearings.

FEATURES :
• SHIS: EC30/25.4 | EC30/26
• 45° x 45° angular contact bearings
• CNC machined 6061-T6 aluminum cups
• Aluminum compression star nut
• Weight: 120g

COMPATIBILITY:
• Fits 1-1/8" standard threadless head tube frames (not integrated or internal)
• Fits 1-1/8" Steerer forks