The K70 definitely is the right look. And actually a decent unimproved surface tire. Not great, but decent. And it works ok on improved surfaces. Not great, but ok. But it looks great...... I switched to Avon Road Runners as well. Better grip on the road, better in the wet (not a little bit, a lot better), better life. But, definitely not the look and maybe not quite as good on unimproved surfaces. For a vintage Brit bike that gets ridden, definitely a great choice in tire. For the occasional ride, K70's are likely a better choice considering price. But I do have k70's on a plunger frame BSA......they look the part and you are only going to push a plunger frame just so hard.....so for that bike, K70's are the right choice for me.