Two companies that make lightweight wheels & tires at good prices:
-Look at Konig Flowformed wheels
-Tires look at Hankook Ventus Evo ii's
I wasn't sure by your post if you wanted to stay 18's or 17
245/35/18's wider and the right outside diameter at 22lbs
https://www.tirerack.com/tires/tires...omCompare1=yes
245/40/17's are actually a pound heavier at 23lbs
I went with stock size 215/45/17 and got 19lbs on my scales so tirerack #'s are right
Also went with konig Hypergrams listed at 16.3lbs I got ~16.5lbs so their weights are correct as well. They don't look they great as they look small but they have a few new styles.
I like their new Dekagram wheels you can get a 17x9 at 17.3lbs
or at 18 x9.5 with concave face at 19.8lbs
https://konigwheels.com/wheels/flow-...eels/dekagram/