A-head Basic neck by Force for 1 1/8 '' fork tube with inclination +/- 3 °. It is made of matte black aluminum for steering wheels with a diameter of 31.8mm. Product: Neck Type: A-head Brand: Force Model: Basic S4.5 Dimensions: 45mm Material: Aluminum Color: Matte black Characteristics: For handlebars with a diameter of 31.8mm Designed for 1 1/8 '' fork tube With a slope of +/- 3 °