How much can I upsize my tyres?

[150pcxer]

As my bike is the old non-led type, the sizes are

front: 90/90-14
rear: 100/90-14

What are the max dimensions of upsized tyres I can change to, without compromising safety and within limits?

Thank you.

[affeno]

I have PCX 2013 I have 100/90-14 in front and 120/-14 in back it works good

[AC_ING]

Yes, You can't do more than 100/90 in the front

[Jge64]

A friend with a PCX upsized to a 140/70-14 and had no problems-good fit.

[docjones]

Hey Jge64, was that 140/70-14 in the front or back. I looked between the front forks and there seemed to be a lot of room in there. Didn't check the back at the time and I should have. The tires on these PCX's seem so skinny. I want a beefy look.