The FSA The Pig threadless headset is constructed of chromoly and features 1/4" ball bearings.
• EC34/28.6 (5/32x22) | EC34/30 (1/4 x 15)
• Forged chromoly lower cup
• 12mm Deep Cup 6061/T6 upper cup
• Super oversized lower ball bearings
• Caged 5/32 ball upper bearings
• Forged chromoly crown race
• Gyro compatible
• Laser etched aluminum top cap
• Black or silver anodized finish