Porkchop BMX quill stem threadless stem adapter - made of chromoly steel. Quill size: 21.1mm (this is common for 1980's BMX bicycles, however a very similar common stem size is 22.2mm which this will not work for. ).
Old School BMX Stem 21.1mm 4 Bolt Top * SR Suntour Power Quill Stem Copy *
Old School BMX Handlebar Stem 22.2mm - Top Load - Quill style Toploader
KHEBikes KHE PRISM Old School BMX Quill Stem for 1" Threaded Forks - BLACK
Hilai Bike Stem Riser Extender Stem Riser Adapter Durable Aluminum Bike Fork Stem Quill Riser Extende Bicycle Stem Head Up Raiser Handlebar Adapter 22.2mm, Black, Bmx Stem
Bike Quill Stem 25.4mm Handlebar Folding Bicycle Handle Bar Riser 1" Fork Gooseneck Stem for BMX Road Folding Bikes, beach of cruiser Bicycles - Black
