Anyone have had some experiences with this product
https://www.ebay.com/itm/301661952411 or this one https://www.ebay.ch/itm/193702641246?mkcid=16&mkevt=1&mkrid=5222-175126-2357-0&ssspo=fixCT_5wRWe&sssrc=4429486&ssuid=JYVEumBISMW&var=&widget_ver=artemis&media=COPY
and can compare it to the carbon seat post from Brompton? Is it worth to change to titanium because of the weight saving? How is the stiffness of those two seatpost compared to eachother?
by Deep_Caramel_7899