Genetic Quill Stem Adaptor - 1 Inch Quill to 1 1/8 Inch Threadless Adaptor
Cyclestore.co.uk
Threaded Bike Quill Stem Rustproof Gooseneck High Strength BMX 40mm Stems | eBay
Quill stem measures 1 inch exactly. I'm guessing the fork is a 1 1/8" threaded. What headset do I need? Also does anyone make 1" Threadless adapters? : r/xbiking