Teravail Stratum SE Seatpost Saddle Position, Sorted When the goal is a clean build that pedals efficiently, the Stratum SE is the post to reach for. Its stiff alloy construction transfers power without flex, and the two-bolt adjustable head lets you set saddle angle with precision. Choose 0mm offset to center the saddle over the post, or 18mm to push it back - either way, you get a secure, repeatable fit across road, gravel, or mountain setups. Features Lightweight 2014 aluminum alloy construction with forged aluminum head stiff, strong platform for efficient power transfer Two-bolt adjustable head precise saddle angle adjustment with solid, reliable clamping0mm or 18mm offset options fit a wider range of rider positions and frame geometries Tested to ASTM 3 / ISO MTN meets mountain bike durability and safety standards | Teravail | Stratum Se Seatpost 27. 2 X 400Mm, 0Mm Offset | Aluminum