Earlier quoted context omitted.
Up to 50k there’s no problems. But, above 50k I’m gonna end up emptying my glycogen storage.
You might enjoy Attia on distance cycling while in nutritional ketosis: https://peterattiamd.com/ketones-carbohydrates-can-co-exist/ (like you, he eats carbs when riding long distances--even with the aim of staying in ketosis)
I eat a lot of carbs ( mostly clean, veges and fruits ) and cook most of my food at home. I’ve been maintaining weight but haven’t really lost much fat.
I know my diet is the reason, so the answer is probably to reduce carbs and increase the proteins. Perhaps try for a longer intermittent fast.