Seeley Norton 750 Thanks to Colin Seeley for the photo of this expertly crafted racer. The Seeley firm bought out the G-50 tooling when Matchless called it a day.  and continued to build G-50 engines and fit them in their own chassis (similar to the example shown)  for some years and with notable success in English club racing circles.  As this design slightly preceded the advent of really sticky tires, it's a fair question to wonder how well the chassis really worked (shown here with Dunlop "Trigonic" road race tires, which were less sticky than some of today's high performance street tires) and how well  this design could handle the horsepower  difference between the much milder G-50 and the  Snortin' Norton.