Converts a threaded fork`s steerer tube to threadless. Convert your old 10 speed bike to use a modern 1-1/8" "threadless" stem. Quill diameter: 22.2mm Top diameter: 28.6mm (1-1/8")
These shims let you use a standard 25.4 mm (1 inch) diameter handlebar in an Italian size (26.0 mm) stem. Note: These shims make for a very tight fit. Sometimes only one shim is needed.
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