Steel Folding Bike Handlebar Stem for Folding Bike Folding Bicycle with Quick Release Bicycle Parts - China Bicycle Parts, Bicycle Stem | Made-in-China.com
Alloy Stem (fits MOST Campo or Ferro) – ZiZZO Folding bike
Amazon.com : SENQI Handlebars Folding Bike Stem Quick-Release Aluminum Alloy Adjustable Stem with Teeth BSZ004(22.2mm/Black) : Sports & Outdoors
Litepro Head Tube 40cm Stem Quick Release 25.4MM – Litepro official store