dhanson865 wrote:I do wonder what 15" rims would work with the Leaf and what RPM is needed to keep the speedometer accurate. F8L has documented MPG losses when switching from 15" tires to 17 tires on the same commute.
The biggest issue with 15" wheels is finding some that will clear the front brakes. As it is, many 16" wheels don't clear the front brakes.
If you do find some 15" wheels that clear the front brakes, the two tire sizes that are closest to the stock diameter are 195/65/15 (0.5% larger than stock) and 205/60/15 (0.8% smaller than stock). 195/65/15 is a very common size and being slightly narrower and taller should be more efficient as well, so I would opt for that if I were going that route. Note that handling will suffer in comparison to the stock tire size - the sidewall is quite a bit taller.
If looking for 15" wheels, your best bet would be dirt rally style wheels as they often are designed for maximum brake clearance.
Example: Team Dynamics Pro Rally Wheels 15x6 e40 5x114.3
Would love to try to test fit some of those...