BIKE STEM CONVERTER 25.4>28.6MM 1">1 1/8" QUILL TO AHEAD ADAPTER REDUCER ADAPTOR | eBay
Bicycle Alloy Ahead Adapter 03 25.4mm Silver.
Ergotec Ahead 1 1/8, Black | Bikeinn
A-Head Adapter Quill 1" and 1 1/8" - by.Schulz GmbH
Adapter z 1-1/8'' GWINT na 1-1/8'' AHEAD
Aluminum Alloy Quill To Ahead Bike Handlebar Stem Riser Adapter 22.2mm/20.8mm To 28.6mm 1 1/8 Inch Bicycle Accessories Black - Bicycle Stem - AliExpress