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