Abbreviations Used For Harley Davidson Big Twin Motorcycles from 1936 and Later
- By George
- February 10, 2019
- Comments Off on Abbreviations Used For Harley Davidson Big Twin Motorcycles from 1936 and Later
The current abbreviation scheme used for Harley Davidson motorcycles began in 1936 with the Knucklehead engine. The first Knucklehead engine had a displacement of 61 cubic inches and was assigned … Continue Reading →