How reliable is the KTM electric cycle in terms of build quality and durability?

From my perspective, KTM cycles are very durable. But you must do regular servicing. If you ignore it, even the best cycle will have issues. So yes, reliable but only if you maintain it.

I have been using KTM Macina for 3 years. The frame is still very solid, no cracks or bending. Even after rough rides, it feels stable. The reliability is what makes KTM special.