I can imagine the MT43 wouldn't be too great travelling to anywhere on sealed roads at 65mph. Might be outside their design parameter. They seem to be relatively soft in the tread, which is one reason they grip so well. I believe any trials-type front tyre takes some getting used to. They do tend to 'walk' around a bit, but after a while you get used to it. It is, however, scary riding in wet and slippery mud with these critters on the front (my opinion).