Adjustable -10/+60 degree. High angle for comfortable riding and improved steering control. 3D forged 6061 T6 aluminum. For direct mount on the steerer tube, 28.6 mm. For standard trekking handlebars. Bar bore: 31.8 mm. Stainless steel bolts. Extensions: 95, 105 and 115 mm. Weight: 283 grams