So I just got some Ksport lowering springs w/ koni shocks.. I am now looking into rims for "old greg". I am debating to go with either 16" rota auto x's or 17" auto x's or possibly another set of rims.. Don't know which I want. Which would have a better ride quality? I commute 85 miles each way to work daily.

 

Depends on the tires even more than the wheels.......

All the wheels are going to be made of metal, the amount of rubber you put on is what is actually is going to make the difference.

 

In that case what tires would you recommend. thinking of going with 45 sidewall on 16's and 40 on 17's

 

Depending on the width of the wheel (also a factor) and how low you are....

S2000 stock has 205/55/16 or 215/45/17

IIRC the 16" is 6.5" wide and the 17" is 7"

Those ride ok, I was lowered on stock wheels/tires with S-tech's when I used those sizes.

I think on the '96 ITR's I had on my Accord I had like 205/55/15