My '70 Series II has Dunlop SP40 A/S whitewalls, size P205/65R15; they perform well for the kind of driving I do (rarely above 75 mph, no racing or other competition) ride comfortably, produce low road noise, look more or less original (all late Series II E's were delivered with Dunlop whitewall tires), and were relatively inexpensive. They are a bit wide for the wheels but they don't interfere with the body or suspension, and their aspect ratio is such that the speedometer is as accurate as it was originally (within 3 or 4 percent of "true").