I have been meaning to sketch out my motorcycle (my grandpa’s old bike) for some time now. I started with just a simple papermate fine point on marker paper with the sketch below. Feeling out the shapes, silhouette, proportions and placement of each part. There is lots of room in the engine area, because Benelli used this frame for 4 different size engines (125, 175, 250 and 360cc!). Click on each image below for the step by step demonstration!