Intelligently design clamp paired with controlled flex.
Maximum flex isn't everything. Seat posts with too much flex have two crucial disadvantages:
1. High cadences cause the rider to start bouncing
2. The lack of damping delivers an uncomfortable kickback.
So some flex is good, but it must be controlled. All of our seat posts are tested in accordance with the most stringent standards.

We cannot use TeXtreme carbon fibre on the seat post for technical reasons. The seat post is thus manufactured using UD carbon fibre. This doesn't affect the weight – only the name has changed to ADVANCED.