Silly question really - but how do you know they are "rotational" I've never heard of this one. CL

I've just fitted a pair of Michelin Latitude tyres to the front of a TD4 Freelander (the original 4x4 Synchrones are no longer available) The result is a constant drone together with floor vibration (not a wheel balance problem) I've had the front/rear tyres re-balanced and swapped only to find...