Heavy, mild, but stable and agile unit construction twin that has minimal vibes to match the minimal performance. Time has been kind to its looks and it can be reliable because it’s very hard to thrash them. Some tuned examples turning up as Yank imports, which don’t seem to blow their motor with the ease of the tuned 650’s. It’s possible to buy very good ones for under two grand. Can run to as much as 50,000 miles between rebuilds.
1962-70 499cc (68x74mm) OHV twin 30hp, 95mph, 60mpg, 400lbs