I need to get a couple of new car tyres worn by 40,000+km

However the front right wheel has a 'clunking ' noise if going slowly over a bump so I guess it needs a repair

Do the large tyre places around Chiang Mai just replace tyres or will they do this repair as well

Any recommendations in theCarreafour area appreciated

I have been looking for "new car tyres worn by 40,000+km" but can only find them worn by 10,000 km and 20,000 km. There does not seem to be any 40,000+ available in Chiang Mai.

Yes, the large name brand tire dealers do front/rear end repairs, replace and repair tires, etc. Take a Thai speaker with you.