1" Threaded Bike Headset- Forged and CNC machined 6061/T6 alloy cups- 21.15 x 32.7 x 26.4 x 24TPI- Sealed Bearings- Crown Race Diameter: 26.4mm- Stack Height: 26.2+11.9=38.1mm 1mm- Weight: 100g- Made in Taiwan- Color: Red (as pic. shown)