Bill Snelling Wrote:The BSA bolt-on engine was called the Winged Wheel, but not by those who bought one!
Nearly as bad as the Vincent Firefly!
Another monument to the British motorcycle industry

Hmmm, I had the 32cc Cyclemaster in 1956 (Originally a 1951 25cc with the BIG barrel and piston). I became very proficient at cleaning or changing plugs and decoking it by the roadside, running on a 16:1 petroil mixture using "Castrolite".
Funny, but I always thought that I fancied the Vincent Firefly until Bill's above remark.