Motorcycle displacement can be divided into five categories: 1, ultra-light: below 100 50-90cc, including 50, 70, 80, 90 and other displacements. 2, light: small displacement - 100-150cc, including 100, 110, 125, 150 and other displacements. 3, small and medium displacement: 200-400cc, including 200, 250, 300, 400 and other Displacement. 4, large displacement: 500-900cc, including 500, 600, 750, 900 and other displacements. 5, public upgraded large displacement: more than 1,000cc, there are 1,000, 1,100, 1,250, 1,300 and other displacements. At present, the domestic national standards and traffic regulations: 30cc or less for fuel-assisted vehicles; 30-50cc for mopeds; 50cc or more for motorcycles; now most of the domestic motorcycles are in the 0.125 - 0.25 between, that is, 125 - 250CC motorcycles, displacement is relatively small. Motorcycle displacement size difference: 1, different displacement: the most direct difference between the two is in the displacement above, large-displacement motorcycle requires more than 600cc displacement, common large-displacement sports car representatives such as Honda CBR1000, Suzuki GSX R1000, Yamaha R1, etc., and small-displacement motorcycles are generally less than 400cc displacement models. 2, different weight: large-displacement Motorcycle overall manufacturing process is more complex, more devices required, the weight is much heavier than the small displacement, the current market common large motorcycle are more than 190KG, while the small displacement motorcycle is generally in the 160KG or so, familiar Harley motorcycle and Dodge motorcycle weight and even up to 600KG. 3, tires are different: the front and rear tires of the vehicle with large displacement have a larger diameter than those of the small displacement, the common large displacement vehicles are generally less than 400cc models. Big, common large-displacement vehicles front wheel 120-140mm, later 180-200mm, and small-displacement motorcycle common front wheel 110mm, rear wheel 140mm, the use of large tires is to increase the safety of driving and the reliability of the bend, the larger the tire the better the bend, the more stable the ride!