do you guys think that 14'' wheels would fit on a 99 GSR. If so, do you think that 185/75/14 tires would fit in the fenders. thanks

 

14's will clear the brakes.

A better tire size would be 185/65/14's or the stock tire size of 195/60/14's. I've heard that a narrower tire does better in deep snow so maybe the 185/65's would be a better choice. I'm not too sure about the 75 series however.