COOK BROS external Headset 1-1/8"

For all classic and retro frames, COOK BROS offers a headset designed and developed for 1-1/8 " external steerers running on 1-1/8" straight steerer tube. It has precision annular bearings as well as Aluminum cups and compression star.

FEATURES :
• SHIS: EC34/28.6 | EC34/30
• 45° x 45° angular contact bearings
• CNC machined 6061-T6 aluminum cups
• Aluminum compression star nut

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