My PCX never lost air
My Honda Wave, with larger upgraded Dunlop tires and tubes need air every week
Every time I fill up I check the tires and top off to 35 by the next week they are always down to 26 psi and need pumping up again
I found that the valve is often the source of the tires deflating. The standard valve which comes with the inner-tubes is often of low quality, replace the valve with something a bit better and the tires stay longer inflated.
What is normal for tubed tire deflation if bike not used?
My wife has a Yamaha Fino with tubed tires, and I find if we let the bike sit for more than a couple of weeks, the tires go soft. In contrast, my PCX with tubeless tires can sit forever without losing any air in the tires.
Do I have a problem with the Fino, or is this normal behaviour for tubed tires?