Actally of the dozen or so bikes that I ride regularly, only 3 have computers and I check the other 2. The one I was riding is the wife's and my tandem, and she likes to keep tabs on far we have ridden. As others have said, this simply requires the removal of my sunglasses from time to time (usually our destiny and point of return) so it's not a big deal, but it does factor in if I'm going to start using the polarized sunglasses or not. I guess I can just use my regular sunglasses when I ride a bikes with a computer, and use the polarized sunglasses with bikes that don't. BTW, any love out there for Rudy Project? I have a pair of carbon looking frame Skeey (non-polarized); 3 pairs of colored lenses. I bought these over 10 years ago (2000 model) and they look and feel like new; you got to love those half moon hard cases. A PITA sometimes but they really protect the glasses. The polarized set given to me is a pair of Maumi Jim Sports; probably a little more comfortable and definitely more eye cover to keep blowing grit out. Do you pay top dollar for sunglasses or do you buy sunglasses off a rack at a drug store?