Need help here about seat sleeve

[jermans]

Anyone here use seat sleeve. mine using 31.7-27.2. and it weight 50g. still unhappy . so, what is the lightest seat sleeve can i find it in the market?

[Knut]

My USE 31,6 -> 27,2mm shim weighs 21 grams after I trimmed it down to correspond to the minimum insertion mark on my Easton EC70 post and also extends to just under the toptube in my frame. Originally it was 19mm longer and 26 grams.

USE homepage

Their larger diameter shims are all made from "special filled engineering thermoplastic" aka plastic to keep the weight down. Good product that keep my carbon post from slipping...