Ultimate Evo UD Carbon 400mm x 31.6mm - Factory SecondThis is a factory second product, so may have some cosmetic issues with the anodising or etch. This does not affect the performance of the product, and comes with our standard 2 year warranty. With the unique lay up technology and latest carbon fibre polymer and composites combined with the newest computer design techniques, the Ultimate Evo is our lightest ever seat post. This inline seat post is available in 3K Matt Carbon or Stealth Matt UD Carbon