I am 67 yrs and 295#. I am interested in a comfort bike such as Giant Simple 7. I do not understand the pros & cons of the various sizes of bikes. I would appreciate a simple explanation of this issue.
Also are smooth tires better than knobbies.
What is the most comfortable seat for a BIG BUTT (gots lots psi on a small surface).
I am looking to get down to 220# by riding the roads.