Tank you for the response and help!
I am about 125 kg now. I do about 40% of my riding in gravel/dirt right now. The roads here are pretty chewed up, often with roots, man hole covers, pot holes etc so there is plenty or off road conditions.
When I go back to work I will have a bike trailer and 2 kids in the back adding an additional weight to the rims.
I will check with my local shops and see what they do.