I also have the S Leaf. I had the steel rim wheels, and managed to get a bunch of new Leaf alloy wheels and tires.... Believe it or not, the OEM Leaf Alloy rims (with exactly the same Ecopia tires) weigh 5 lbs. more EACH!! If you want lower weight, new rims will cost as much as a new set of tires, without a significant improvement. I think - - Be happy with your rims (that you never see when you are driving) and save the money for when you put on new tires....