Standard Headset #1 DESCRIPTION It is a high-quality component that we use in all of bicycles with 1 1/8″ steerers. It’s made of aluminum and it has sealed bearings. SPECS Standard Headset #1 Model Standard Headset #1 SPEC 1 1/8" Bearing Color Hi-Polished SIL , Matt Sand BK Flamingo reserves the right to change technical specifications above without prior notification.