Cannondale SL Headset Compression Expanding Plug w/Flat Top Cap K35009

Original Cannondale headset compression wedge with flat top spacer for bikes with 1 1/8" upper steer tube.

Expanding lower takes 4mm hex wrench to expand, upper takes 5mm hex wrench to tighten.

Super light aluminum construction weighs just 13 grams as pictured.