How many miles? Any issues?
I am now approaching 12,000 miles on my 2017 Z125. I bought it in September 2017. I ride almost everyday as this bike is my daily driver. Work, Gym, Grocery, etc...
The bike is 100% stock in every way. The only thing that I have had to change so far is the chain at 7700 miles. I change the oil every 1000-2000 miles. I try to keep it closer to 1000, but time dosnt always permit. I have only used Rotella T6 5w40 for my oil. I change the filter every other oil change using the K&N Filter (Part # KN-112). The stock rear tire needs changing as it has started to have a decent flat spot. I usually have a full backpack and me alone, I weigh in around 195lbs most of the year.
So.... the bike has been extremely reliable. Only real knock is I have noticed a decrease in gas mileage slightly. I am not sure if that's from wear and tear on the engine, or the fact that I went from long distance driving (work was 23 miles away), to shorter distance. (work is now 5 miles away).
Maybe list your mileage and issues below, also modifications play a factor. Like so....
2017 Z125 Pro - Green
Maintenance Done: Chain