Webcompare motorcycles by manufacturer, make, model or year before you make a purchase. Webwhat’s the blue book value of my motorcycle? The “ blue book value ” is a valuable guidepost for motorcycle buyers and sellers. It provides a realistic, data. Webtoday, these manufacturers continue to dominate the industry, offering a wide variety of motorcycles that have varying cc ratings and performance indexes, ranging from twin. Webtwo primary resources for determining motorcycle values are the nada guide and kelley blue book. Although similar, they may produce different valuations.