Royal Enfield 1937 Model JF “Bullet” 499 cc four-valve OHV single frame # 21785 engine # JF 2514The famous “Bullet” model name came into existence in the 1933 model range, presented in September 1932 and is still carried on nowadays by a 650 cc model built by Royal Enfield India at Chennai. The 1933 model year catalogue introduced ..