Today I recieved my cheap digital hanging scales and did some tests and measurements.
I tested by weighing a 4 pack of 1,5ltr bottles of Coke. Then I searched for weights on the bottles online and also put a seperate bottle on my kitchen scales.
I got 6,400kg for the 4 pack on my new scales and 1580gram per bottle on my kitchen scales. With the added plastic this looks pretty damn good. Also online I found info stating that a full pet bottle weighs in at 1600grams so everything looks pretty spot on and no big differences here.
Then I did the TEC wheel and it came in at 8,980kg including a valve so I was pretty pleased with that weight. Of course I can't be a 100% sure if this is perfectly accurate but after thextesting I've done I have little doubts about the new scale and if there isca difference it would be a very small one. I'll keep you updated on the other weights of wheel and tire combo's but it will certainly take a while till the weather gets better.
Weight info on bottle:
http://www.mzbn.com/en/sales/information/