Seattle Forrest

Here are a couple tips, I hope any of them winds up being useful. 🙂

How much you should ride in each zone depends on goals, like getting faster (once a long distance or a sprint?), build up a base of fitness, or whatever else.

A good idea is to ride around as normal for a couple weeks collecting data, when you feel like you overdid it take note of the amount of time and ballpark average heart rate. That's only going to go so fast because of other factors like heat but it's a good start.

If you can find your lactate threshold heart rate, your zones will make more sense.