Richard H.wrote a review of Syntace P6 Carbon HiFlex on July 15, 2020
Familiarity: I returned this product before using it
I bought this post to get a bit more compliance for the rear end of my endurance bike. Before installing the post I read the manual which states "Please ensure the seatpost clamping mechanism (frame and seatpost clamp) are suitable for carbon seatposts. Not permitted are for example clamping mechanisms that apply an asymmetrical clamping force causing the post to be highly stressed at one point." My frame has an integrated wedge clamp (Fezzari Empire SL). After discussion with the frame manufacturer who suggested I not chance it, I returned the seatpost. It looks well designed and the finish is great. It just does not seem to be appropriate for all seatpost clamp designs. So, if you are considering this post and you have a similar style of clamp to mine, check it with your frame manufacturer before you buy. I took a star off for this limitation.