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>disassemble 2017 Trek FX with quill stem
>expect regular threaded headset
>instead it's some weird sealed thing
>bearing is sealed in and can't be separated from the cup
>the bottom is the same way - bearing doesn't fall out when the fork is removed, and there doesn't seem to be a way to remove it from the cup
>no markings anywhere that says what type this is
>Trek spec sheet says '1-1/8" threadless, sealed semi-cartridge bearings'
What is this? The bearings seem fine for now. The minor noise the handlebar was making when turning disappeared with just cleaning the grime off the cup and crown race surfaces and regressing. But, how do I replace the bearings when they do get shot? Replace the entire headset?
