sentences:  In 1943, the XA's leading link fork was replaced with Harley-Davidson's first telescopic fork.From 1942, the BMW R71 would serve as the basis for the IMZ-Ural and KMZ-Dnepr M72 (U.S.S.R./Russia), and from 1956 the Chang Jiang CJ750 (China) which likewise pressed it into military service though parts should not be considered interchangeable across marques despite visual similarities.According to the American Motorcyclist Association's "Motorcycle Hall of Fame Museum", regarding the World-War-II-vintage Harley-Davidson XA, which has an opposed twin engine — ""Mechanically, the large cooling fins stuck straight out in the breeze, reportedly keeping the XA’s oil temperature 100 F° (55.6 C°) cooler than a standard Harley 45.""