Ergon CF Allroad Pro Carbon Leaf Spring Seatpost - bike-components
Lauf True Grit gravel bikes get size specific carbon leaf spring suspension forks - Bikerumor
Here is the flexible carbon leaf spring that actuates brake return on the Storck. This is the entire caliper- there is no spring mechanism. It is impressively light and uncomplicated. – TriSports
Carbon fibre leaf springs / Composite leaf springs now in stock! - Owen Springs