Choose proper size for your frames seat collar. The Campagnolo seatpost clamp uses an asymmetrical clamp to relieve stress on carbon or any seatpost. The asymmetrical design of the Campagnolo clamp and the proximity of the locking screw to the seat tube are intended to prevent damage. This smart and simple design decreases irregular pressure on the circumference of the seat post and ensures uniform band pressure over the entire circumference of the tube.
Select Outside Diameter of Seat Tube. We do not have manufacturer sizing charts. You must measure your seat tube outside diameter and order the appropriate size.