Originally Posted by pastorbobnlnh

Jeff,

It really depends on the year. My '66 P-13 basically has the same frame as the P-10. The difference would be the lugs were chromed and some of the components were better. By the 1970s changes in the aggressiveness of the frames were introduced to differentiate the models. What is the serial number on your bike? Even one year's difference in the early '70s makes a difference.