much lighter.... I'd say probably 12 pounds lighter in the rear for sure.
But the Turbo replicas have a ver cool finish in their own right.
The inside of the spokes and rim are a gun metal finish and the face of the wheel is polished with a lazer-etched finish that is really awesome for a $700 set of beater wheels. But at 10" in the rear they required a set of $250 spacers and longer bolts. And its a real trick to find replacement wheels.
I cracked a rear one and luckily found a replacement online for about $200. I may order a second just as a back up. Otherwise you have to buy all four again, no one will break up set to replace one wheel.