Maximum size of front and rear wheel on CG125 while keeping the rim unchanged

[pwuser15165460416]

I'm currently trying to play and change around some things on my Honda CG125 2014 model and I do not know that much about motorbikes.
I want to know the maximum size that can be put on the front and the rear, as in I want a broader tyre that is fit for city use.
They front tyre for instance is too thin which I do not like.

[hassantahir2]

For front max you can do without modifications would be 2.75-18 tyre.
For rear can't say for sure but i think max it would accommodate a 90/90-17 tyre on stock configuration.

[pwuser15165460416]

Thank you.