The advantages of lightweight wheels are numerous and lie to better handling, better function of suspension due to less unsprung masses and weight, better acceleration and many others. Still, lightweight wheels need special treatment and mainly avoid pathholes as they are prone to bending
I will begin with the ones i have on my car. They are really popular to Greece. Kosei K1 TS Racing. 14x6j. They weigh only 4.1kg and they are also below the 5kg range for their 15x7l!




As you can see they have 2 valves! This is meant for racing purposes. Still you can make use of this feature yourself as in the one hole you can pump and in other hole connect an air meter gauge.