I weighed the original PS4 tires and y spokes on my 23 M1 after 5,000 miles. Front 59.9 pounds, rear 61.3 pounds.
According to tire rack the tires weigh 28 and 31. 59.9-28= 31.9 for front wheel and 61.3-31= 30.3 for rear wheel. The tire wear is most likely making my weight come up a pound or so lighter than actual. But I also am coming up with the rear being lighter. No idea why.