of Standards, "Mechanics of Pneumatic Tires", Monograph #132, 1969–1970. Williams, J. A. ''Engineering tribology'. Oxford University Press, 1994. External links Rolling Resistance and Fuel Saving temperature vs rolling resistance Simple roll-down test to measure Crr in cars and bikes Rolling Resistance Thresholds Classical mechanics Energy economics Energy in transport Transport economics Vehicle dynamics ko:마찰력#구름 마찰력 it:Attrito#Attrito volvente