Product information "Single Seatpost Clamp, Non-Aero Ø 27.2 (incl. shims)"
• CNC Alloy construction
• Titanium bolt w/ Scandium nut-bar
• 31.8 OD, 30.6mm ID
• Fits ALL Carbon Felt non-aero road frames
• Fits Most Metal Felt non-aero road frames
• Includes 0.1mm / 0.6mm Shims to reduce ID to fit various seattubes
• Available in Black