Federal law is pretty lax on the accuracy of speedometers: "Each bus, truck, and truck-tractor must be equipped with a speedometer indicating vehicle speed in miles per hour and/or kilometers per hour. The speedometer must be accurate to within plus or minus 8 km/hr (5 mph) at a speed of 80 km/hr (50 mph). " [70 FR 48054, Aug. 15, 2005] That is an error tolerance of plus or minus 10%. http://www.fmcsa.dot.gov/rules-regulations/administration/fmcsr/fmcsrruletext.aspx?reg=393.82 Seems that this would be a plausible defense if you got a speeding ticket for 5mph or less over the limit.
Todd '88 Westy |
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