Review on 🚲 Fouriers Seatpost Shim 31.6mm to 30.9mm: Bicycle Seatpost Adapter for Mountain Bike Seat Post Tube by Austin Cejudo

Fourier Seatpost Gasket AC-S007-3163091 0.38mm (0.015" thick) Aluminum (not plastic). Alloy AA6061 (good choice) which is heat treatable and explains the T6 heat treat designation in the product description The liner came in a bubble lined postal envelope and arrived with 14 small dents in the pad. Neither the envelope nor the tube are suitable for mailing. A drop won't damage the liner as it weighs an ounce (28 grams) I'm wondering how much it weighs? The gasket has a 1mm (0.04") right angle flange to hold it to the top of the seat tube. This flange is designed to fit into the seat tube and rest against the top of the tube, then mount the clamp. If the flange was wider, it hangs over the edge of the seat tube My GT LaBamba seat tube is aluminum and is 1.8 m (0.07 in) thick, so the flange is smaller than the seat tube Excellent Reverb Stealth B1 dropper post -Washer so it can't be adjusted up and down, just squeeze and forget until service is required, otherwise dents can cause friction marks on the seatpost.