WFS AH.77 1-1/8" Threaded Bike Headset Set for 1-1/8 inch Threaded Steerer Forks and 34mm Head Tube- CNC Aluminum Alloy, Precision Sealed Bearings for MTB Mountain/Road/City/BMX Bikes
COMPATIBLE: Exclusively designed for 1-1/8" threaded steerer forks and 34mm ID head tubes; External cup system perfect for Classic Road, City, MTB & BMX bikes.