Bike Accessories 34mm Aluminum Zinc Zinc Alloy External With Top Cap Bicycle Headset Bearing Fixed Gear

Label:Yes Color: Black/Silver Outer diameter: 45mm / 1.77in Package includes:1pc bicycle headset Weight: 110g / 3.88oz Cartridge bearing diameter: 34mm / 1.34in Material: Aluminum Zinc Zinc Zinc Zinc Alloy Stack height: 52mm / 2.05in Crown race diameter: 30mm / 1.18in

1 1/8 inch threadless headset With two smooth sealed cartridge bearings. Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.