Carbon definitely has a cool factor. But, sometimes you prefer to rely upon tried and true aluminum to support you. 3T's Ionic 0 Pro is identical to the Team version in every way, except that it features an alloy construction. Instead of the carbon used in the Team, Ltd, and Stealth versions, the Pro Ionic seatpost utilizes a full aluminum alloy construction. It gains a few grams, 30 to be exact, but maintains the robust feel of 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. The 3T Ionic 0 Pro post comes in one color shot peened black with a white stripe. It is available in three lengths: 280mm, 350mm. 420mm. Each length comes in either a 27. 2mm or 31. 6mm diameter.