• Forged aluminum • 2-bolt clamp • 180mm tall

• Forged aluminum • Single-bolt clamp • 180mm tall

• Forged aluminum • Classic streamlined shape • 2-bolt clamp • 180mm tall

• Steel • Polished-chrome finish • 1-inch model has 22.2mm quill, 15/16-inch model has 21.1mm quill • 10-inches tall (extra tall)