Specification：
◎ IS42/28.6∣IS52/40
◎ Tapered Integrated Headset
◎ Alloy, Sealed Bearings
◎ ACB 45° x 45°
◎ Top Nut: 1 1/8"
◎ Bearing O.D. : 41.8/52
◎ Crown Cone: 39.8/30
◎ Height: 9.3mm
◎ Weight: 108g
◎ Different Height of Top Cover Version "D40F" Is Available
