zero s tuning without losing range or controller reliability

I am looking at zero s tuning because the bike has plenty of smoothness, but I want to understand the limits before touching anything.
I found this related page while comparing options: zero s tuning. I wanted a practical discussion before ordering anything.
What should I log first: battery state of charge, voltage sag, controller temperature, connector heat, tire pressure, brake drag and range?

Discussion
21 repliesZero s tuning starts with voltage sag and controller temperature.
For zero s tuning, range is the fuel economy test.
Electric tuning lives in the data logs
Thomas Spagnoli here. zero s tuning is worth discussing only after the machine is measured in a boring, repeatable way. That is how you avoid buying parts to cover a service problem.
For zero s tuning, measure battery state of charge, voltage sag under load, controller temperature, connector temperature, tire pressure, brake drag and range on one repeatable route.
Good zero s tuning should improve useful response without killing range, overheating connectors, triggering errors or making the bike unreliable.
Workshop order
The free motorcycle mechanics course on this platform teaches this diagnostic order and is a good place to learn before spending money on tuning parts.
I can log range but need to learn voltage sag.
Brake drag still matters on electric bikes.
Same start percentage and same route for zero s tuning.
Zero s tuning should not be judged without heat data.
Quiet bikes can still cook connectors quietly.
I will do two baseline rides first.
Zero s tuning with a weak battery tells lies.
Record start percent, end percent and temperature.
Correct. Zero s tuning needs range and thermal notes.
Check tire pressure too.
Before numbers first for zero s tuning.
I will post voltage sag if I can log it.
Connector photos after the hill would help.
No silent barbecue, please.
Exactly. Zero s tuning should stay reliable.
Waiting for zero s tuning range numbers.
And controller temperature.
Update after two rides.