Is there a difference in the number of pounds between 17 inch and 19 inch handlebars?

Yes The number of pounds of a bow refers to the force required to pull the bow and arrow. The number of points is meaningful only when it is given together with the drawing distance. The number of pounds refers to the tension unit of the bow, not the weight of the bow, but the maximum tension required to pull the bow full. One catty is equal to 0.45kg. When the tension of the traditional bow can reach 50 kg, the lethality is already amazing.