Bicycle Handlebar Stem Height Extender CNC-machined Anodized Alloy Adapter Glossy Carbon Fiber Fork Hidden Riser MTB Road BMX

The reviewer tests a stem riser/extender from AliExpress that allows raising the handlebar height after cutting the fork too short. He installs it, finds it makes the bike feel like a jump bike with higher bars, but expresses significant safety concerns about its strength and reliability during riding.