I know the downsides of 20" induction wheels are it's a minor hit to range, slightly less comfortable, and more susceptible to curb rash. The minor range hit is not a major concern for me, but it just so happens ride comfort is the most important thing for my wife and I. Both of us enjoy a very smooth, quiet ride, definitely not looking for anything sporty. Due to the leftover supply in Canada, the sales rep is able to offer me the 20" wheels as a free upgrade - should I take it? Curb rash is also something that worries me, as I'm sure scratched metal on black wheel rims will look very ugly, something that silver rims can hide better.