FSA SX Pro Internal Headset 1-1/8” / 1.5"

Description
• 1-1/8” / 1.5”, 36°/ 45° ACB
• For tapered 50mm / 61mm OD head tube
• For 1-1/8” to 1.5” tapered fork
• Forged alloy upper cup with CNC machined alloy lower cup
• Upper : 36°/ 45° ACB (blue seal)
• Lower : 1.5” 36°/ 45° ACB (black seal)
• Stack height 18.8+2.4=21.2mm
WEIGHT
• 110.2 grams