May be worth looking at this thread, re DEVONthink
For simple string searches across files, you can point something like The Archive (macOS) – Note Taking: Nimble, Calm, Plain.txt • Zettelkasten Method at your main folder of Bike files, and it will find most things, though it will display the HTML source.
For subtler searches over a folder full of Bike files, you can use XQuery searches, but that’s a bit more technical (script-based).