The Raleigh Twenty
In the '60s, Moulton bicycles were hot in England, and Raleigh wanted to get in on the action. One of Raleigh's answers to the Moulton was the Raleigh Twenty, also known as the Raleigh Shopper, and sold under some of Raleigh's other captive brand names. Some also were made in Canada and New Zealand.
The Twenty was not nearly as sophisticated a design as the Moulton, but there was a visual resemblance. While the Twenty lacked the Moulton's full suspension, it was inexpensive and rugged and fun to ride. The 20-inch wheels were easy to get tires for, and the tires held up quite well. The Twenty superficially resembles many inexpensive European 20-inch folders of the era, but the frame and hinge are much more solid than with most of these.
A stock Raleigh Twenty offers performance comparable to that of a 26 inch wheel 3-speed "sports" bike, but, due to its robust, well-designed frame, it lends itself to being "hopped up" in performance by upgrading components. With suitable equipment, it can approach the performance of a Bike Friday at a much lower price.