Mxhuc Bike Headset Top Cap Cover Expander Plug 28.6mm Top Headset Expansion Expander for Bike Mountain : Amazon.de: Sport & Freizeit
Fouriers Fahrrad Headset Expander Stecker Stem Top Cap Abdeckung für 31,8mm 1 1/4 "RIESEN OD2 Gabelschaft Über Stick carbon Gabel Kompressor _ - AliExpress Mobile
Compression Plug with Integrated Spacer Stem Cap – Wolf Tooth Components