You don't have to use numbers to "Carb Cycle" ~
You could just eat carbs pre and post-workout and limit them the rest of the day. Your attitude would be geared along the lines of utilizing bodyfat to energize you for the most part.
After a week of this, you could ad one day where your carbs were extremely high... maybe even two days. This would still be "carb cycling"
If you decided to completely deplete yourself of blood sugar, you could try to operate in a state of ketosis for as long as you (or those close to you) could tolerate it. Once you add carbs back to your diet, you have just "cycled" ... once. If you continued this process, you would continue to "cycle" your carbs much like a Pro bodybuilder would "cycle" his... uhmmmmmm... yeah.
"cycling" can be done with anything in life. There is no special objective science or protocol. If it works for you, then do it, but most people don't dig it too much.
Most people don't even like change. Hence "same old, same old" ~
You could just try something simple like eating carbs (starting with breakfast) all day along with protein and moderate/light fats, and then the next day cut carbs completely and only eat protein and fat. That would be a two day cycle.
Good advice. No need to "split hairs" by being too specific. But, it is nice to have a good idea of quantities you want to and are taking in.