Nitto quill adapter for clamp-on stems – Rivendell Bicycle Works
KRSEC Handlebar Stem Adapter - VORO MOTORS
Velo Orange Threadless Stem Adaptor
Amazon.com: Deda Elementi Men's Spada Quill Stem Adapter, Black, 22.2mm / 25.4mm : Sports & Outdoors
Origin8 Threadless Quill Adapter converts 1-inch threaded to 1-1/8 thr – The Bikesmiths
B&L Bicycles French bicycle stem quill adapter for 22.0 , threadless - B & L Bicycles near Paradise Creek on the Palouse in Pullman. We love riding the Rolling Hills of the Palouse.