The 3T Ionic 0 LTD seatpost keeps rider weight forward for quick, precise handling and a more aggressive pedaling position. This high modulus carbon fiber seatpost also absorbs road vibration to reduce fatigue and increase comfort on long rides. 3T used a blend of lightweight and durable carbon and aluminum for the construction of the Ionic. For the shaft, 3T used ultra stiff high modulus carbon, which blends low weight, stiffness and comfort. Although stiff, carbon also helps to dampen the vibration from rough roads. The high modulus carbon is 3T's top of the line carbon. Atop the post, 3T uses it sophisticated Difflock seat clamp. This is a single bolt clamp was built from alloy and it is compatible with saddles that have 7mm round rails. The splined design of the clamp makes setting saddle angle and setback simple and it requires only lightweight clamping to ensure that the saddle is secure.