Does anybody know what the numbers that are cast on the rim in between the spokes of my wheels mean? I already tried a search. Anyhow, these are the numbers;
690 kg
4X114.3 620 kg
4X100 500 kg
5X100 505 kg
Is it something to do with axle weight?

 

the weight capacity for each wheel.....

 

Correct - the bigger the pattern/more bolts, the greater the load capacity. 100 kg = 220 lbs roughly.

 

That is the wheel's load rating.
For 5x100 PCD, the load rating is 505 kg. This is the mandated standard of the VIA or Vehicle Inspection Authority in Japan.

Also, the 505kg rating for the 5x100 PCD was recently updated to 520kg due to reports from wheel manufacturers that this is not enough for the SUbaru drivers in the United States that tend to push their cars to the max

 

if by push to the max you mean drive on crappy american roads j/k

 

thanks for taking the time to answer my questions, i-club is such a great site.