From Moped Wiki
The Honda PC50, also known as the "Little Honda," was in production from 1965 to 1970 and was only imported to Canada for a single year in 1969. The PC50 replaced the Honda P50, which was imported into North America from 1966-1968.
The PC50's design was actually based on the Belgian C310, with a pedal-equipped stepless-transmission modelled closely on the Honda P25. It was sold in Japan, Europe, Canada and the United States.
The engine is an air-cooled, four-stroke, single OHV, with a 49cc displacement. "The PC50 engine featured an overhead camshaft motor derived from the Honda P50 motorwheel which ran from December 1966 to April 1968, being replaced by the PC50 (OHC), which continued up to April 1970 when the OHC engine gave way to the OHV (pushrod) motor in the same cycle frame, and the new model being re-designated as the Honda PC50K1." The pushrod motor was cloned and used in the 70's Indian branded mopeds. 1
The Honda PC50's four-stroke engine has an output rate of 1.8bhp at 5,700rpm, and an 8.5:1 compression ratio. The top speed of a PC50 is approximately 35 miles per hour, or 56 kilometers per hour.Honda PC50
Note: The Honda Z50 R 50cc Dirt Pit Bike carb fits perfect on the PC50.