Just wondering does anyone know the weight of a stock 1995 z28 rim?

 

With tires probably 20-30ish range. If you have them you could weigh them.

 

i was just wondering cuz i want to buy some new rims that say they are ultra lightweigh 17 lbs. so i figured if my stock rims are 25 lbs. my car would be 32 lbs. lighter

 

The stock wheels are aluminium so they are pretty light as it is, a general rule of thumb is that an aftermarket wheel is usually (not all cases) heavier, especially if it's a chrome wheel, because the aftermarket companies don't use quite as high of quality materials, and if it's chrome plated it adds weight because chrome is heavy. A 17 lbs wheel is relatively light, although it's probably similar to the weight of the stock wheels. Another thing to consider is that 1 pound of unsprung weight (wheels/tires/brakes etc.) is worth 8 lbs of sprung weight.