Flexible seatposts for road-racing bicycles based on Carbon-Fiber/Epoxy Composites and designed according to patented principle (pseudo-parallelogram) have been developed by Canyon and Ergon.

Canyon: VCLS Post 2.0

www.canyon.com

www.canyon.com/technology/vcls2/

Ergon: CF3 Pro Carbon 

www.ergon-bike.com

www.ergon-bike.com/de/de/product/cf3procarbon