WHAT ARE MOTORCYCLE BIFOCAL GLASSES? Motorcycle Bifocal Glasses have a distinct magnified area at the bottom 1/3 of lens. Since these are bifocals that don’t require a prescription, the top area has zero magnification. You can compare this to looking through a clear glass window. When looking through the bottom area of the lens, small objects are magnified. Bikers can see their instrument panel and GPS. When looking straight ahead, the vision is normal. Bifocals are available in the following powers: +1.00 +1.25, +1.50, +1.75, +2.00, +2.25, +2.50, +2.75 +3.00, +3.25, +3.50, +3.75 or +4.00. NEAR INVISIBLE BIFOCAL LINE: Everyone will need to wear bifocals at one point in their lives. But do you need the entire world to notice those unsightly bifocal lines? The magnified reading area is injection molded, which means you can’t feel the line on the front of the lenses. The front of the lens is smooth, like nothing is there. So the bifocal line is nearly invisible. It’s visible from the back of the lens, but not so much on the front of the lens.