You must have been looking at the 2006 Fizik website. They have the Aliante Carbon with Ti rails in the MTB section for 2006 and must be trying to market it for MTB use. Strangely it would be a poor choice for MTB as it has a less than durable cover.wallyh3 said:Why can't the MTB version of the Carbon Twin Flex be used for the road? Ti rail version is cheaper to buy. Is the padding different? Thanks.