Works Components 1.0Adeg angle-adjust headset with EC44 upper and ZS56 lower cups for tapered steerer tubes and head tubes between 110mm and 119mm in length. CNC-machined in the UK from 6082-T6 aluminum with sealed bearings. Allows + or - geometry adjustment. Fits frames with 44mm upper and 56mm lower internal head tubes. Tapered steerer tube compatible (1 1/8" to 1 1/2") or with 1 1/8" fork with a reducer crown race. Ideal for trail, enduro, and downhill bikes. Works Components Angled Headsets Explained Adjusts the bike&&';;s head tube angle by 1.0 degree 1.0 degree headset will lengthen a bikes wheelbase by around 10mm, and lower the bottom bracket by around 2mm Due to angled nature, headsets are head tube length specific. This headset is designed for 110mm - 119mm head tubes. Precision CNC-machined from 6082-T6 aluminum and anodized in the UK Includes top-cap, star nut, bearings and crown race table{border-collapse:collapse;width:100%;}td{text-align: left;padding: 8px;font-weight:350;}tr:nth-child(even){background-color:#f2f2f2}th{background-color:#eb212e;color:white;text-align:left;padding:8px;}.desc ul{font-size:24px;font-weight:600;margin-left:-25px;padding-top:35px;border-top:3px solid #f0f0f0;}.desc li{list-style:none;border-bottom:4px solid #eb212e;width:142px;} TECH SPECS Model 1.0 Degree Angle Headset S.H.I.S. EC44/28.6 / ZS56/40 Stack 16mm/2.5mm Angle 1.0Adeg Head tube Length 110-119mm Head tube Internal Diameter Upper: 44mm (EC44) / Lower: 56mm (ZS56) Cup Insertion Depth Upper: 9mm / Lower: 11.5mm Upper Bearing 41mm OD, 45 x 45Adeg AC sealed bearing Lower Bearing 52mm OD, 45 x 45Adeg AC sealed bearing Color Black