Speaking to our local tyre guy the other day after he attended a large tractor with flat rear. This one had such a top speed that tyres with speed rating over 40mph were required, even though as I understand, there is a 30 mph speed limit for them on our roads.
We live near the Jody Scheckter farm and the A303/34. I can guarantee they do more than 40! Some are rolling up the A34 at a good 40-50 and others have been pushing me to go up the local lanes at more than 40. Maybe he just had his tuned by Ken Tyrell RIP as there are six wheelers. I guess they have different classes, GT1 GT2 GT3 etc.
