Lately, I changed stock tyres of my new City 2010 with Michelin 185 65 R15 without changing its stock rims and two days back I got a chance to test my car on motorway from Lahore to Islamabad. On the way, I noticed that car starts wobbling after 130 Km/h, which was quite disappointing for me.
Could someone suggest what could be the reason for this and why the ride becomes rough and unstable after 130 Km/h .
Is it some kind of compatibility issue of new tyre size and stock rims or has it something to do with wheel cambering/alignment.
Please do share your ideas.