Teravail Stratum Carbon Seatpost Less Buzz, More Miles Carbon does two things an aluminum post can't: it sheds grams and takes the edge off road buzz before it reaches your sit bones. The Stratum Carbon is a straightforward upgrade for road, gravel, or mountain bikes, swapping in unidirectional carbon fiber construction where your stock alloy post lives now. The forged aluminum head keeps things solid at the clamp, and two offset choices let you fine-tune your fore-aft position without swapping rails or rebuilding your fit from scratch. Features Unidirectional carbon fiber construction cuts weight and dampens road vibration for a more comfortable ride Forged aluminum head durable clamping interface that stands up to torque specs without flex Two-bolt adjustable head precise saddle angle adjustment with independent fore-aft and tilt control0mm and 18mm offset options dial in your saddle position to match your fit without changing your setup | Teravail | Stratum Carbon Seatpost 30. 9 X 400Mm, 0Mm Offset