Van Nicholas Titanium seat post 400mm with zero setback, easy adjustable.   Titanium is one of the best materials for seat posts because of its ability to deflect shock and increase riding comfort. The new sideways clamping mechanism allows for easy assembly and rider position fine-tuning. Made from Aerospace-grade 3Al/2.5V Titanium alloy with a brushed finish. This seat post has a zero setback and a 400mm length and is available in Ø27.2, Ø30.9 or Ø31.6mm diameter. At the back there are laser etched hash marks to lift it up to your desired length. Van Nicholas Ti 27.2 Seatpost Features zero setback available in Ø27.2, Ø30.9 or Ø31.6mm diameter. laser etched hash marks to lift it up to your desired length.