![What is this and how do I fix it? I wanted to swap stems but I obviously can't because of the lack of a top cap. It seems to be an FSA What is this and how do I fix it? I wanted to swap stems but I obviously can't because of the lack of a top cap. It seems to be an FSA](https://preview.redd.it/8ueqxiyxegq71.jpg?width=640&crop=smart&auto=webp&s=0d030b7eaed8dc19d1406a6812dfd0c2d3d8e1b5)
What is this and how do I fix it? I wanted to swap stems but I obviously can't because of the lack of a top cap. It seems to be an FSA
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FSA 1-1/8" Compressor Pro Expansion Plug For Carbon Steer Tube: Carbon Top Cap (NEW) - Bike Recyclery
![Amazon.com : FSA spare parts Compressor for Carbon steerer : Bike Headset Spacers : Sports & Outdoors Amazon.com : FSA spare parts Compressor for Carbon steerer : Bike Headset Spacers : Sports & Outdoors](https://m.media-amazon.com/images/I/517ohadZSiS._AC_SX425_.jpg)
Amazon.com : FSA spare parts Compressor for Carbon steerer : Bike Headset Spacers : Sports & Outdoors
![FSA 1-1/8" Compressor Pro Expansion Plug For Carbon Steer Tube: Carbon Top Cap (NEW) - Bike Recyclery FSA 1-1/8" Compressor Pro Expansion Plug For Carbon Steer Tube: Carbon Top Cap (NEW) - Bike Recyclery](https://cdn11.bigcommerce.com/s-1rmgckn/images/stencil/2280x2280/products/9542/112835/FSA_compressor_pro_carbon_steerer_plug__47727.1611547567.jpg?c=2)
FSA 1-1/8" Compressor Pro Expansion Plug For Carbon Steer Tube: Carbon Top Cap (NEW) - Bike Recyclery
![Amazon.com : FSA No.53-1 1-1/8Inches to 1-1/4Inches Integrated Headset with Top Cap, XTE1670 : Sports & Outdoors Amazon.com : FSA No.53-1 1-1/8Inches to 1-1/4Inches Integrated Headset with Top Cap, XTE1670 : Sports & Outdoors](https://m.media-amazon.com/images/I/41t9-RNctuL._AC_SX466_.jpg)