What do you mean by thicker? Taller aspect ratio, wider?When I look at the tires they offer for each, 20 inch rims will always offer a thicker tire. So what are the real downsides of buying 20" rims?

beat me to it :headbonk:"difference between 19" and 20""
one inch.
Cons:When I look at the tires they offer for each, 20 inch rims will always offer a thicker tire. So what are the real downsides of buying 20" rims?