VXOC Astra-J/GTC

Hi

I had new tyres fitted to the front on my 20inch standard wheels and there is a slight wobble at motorway speeds. I’ve had the front wheel alignment sorted and the wheel balancing checked by another garage and I also got the rears balanced but the wobble is still there. Any ideas? It was perfect prior to the new tyres being fitted. I was thinking of swapping the front and rear tyres to see if this helps


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Are they original alloys?

It's a good test swapping front to back , if it's still the same I would be looking at some suspension components, ball joints, track rod ends or intermediate steering rods.

As John said or the wheels could be bad or even the tyres.