Alero Headset HS-171

ACB- 41.8 x 45° x 8.4 Upper / 51.8 x 45° x 8 Lower
Weight- 66 g
Height- 9.4+0.8=10.2 mm, top cover H: 8 mm
IS- 42 / 28.6, 52 / 40
Material- Top Cover-AL6061 (48 mm) / Crown Race-AL7075 (39.8 mm) / Light Bearings-Alloy Cone