We've found this handlebar shim from one of our suppliers. Allows you to run a modern threadless stem instead of a quill stem. 

Turn your old 26″ bike into a more modern bike!

Specifications

• For a 1″ threaded fork to a 1″ threadless ahead stem
• Convert your Quill stem to an Ahead stem
• 22.2mm ID of threaded steerer
• Select between 25.4mm or 28.6mm ID of threadless ahead stem
• Length: 130mm
• Alloy material
• Silver finish

Mfr Claimed Weight
TBC