Maximum tire size on 19” A rims / risks?

[nuwala]

Maximum tire size on 19” A rims

Looking to run bigger tires on my 19" rims as the original 4.75-19 look dis proportional. I’m having hydraulic brakes, so no issue with the brake rods. The speedo and the fender will be adjusted accordingly.

My local tire dealer (Germany) explained, that the 19” A-rims with an width of 3”, can maximum handle a 500/19 tire. That shall be the general rule of thumb: rim width + 2”.
But my dealer did not really have any explanation why. Some tire dealers list the recommended rim width:
6.00-19: recommended rim width 3.50” – 4.50”
6.50-19: recommended rim width 4.00” – 4.50”
7.00-19: recommended rim width 4.50” – 5.00”
7.50-19: recommended rim width 4.50” – 5.00”

What do you think about the risks of having larger tires on the standard 3" rims?
Anyone having experience with 6.50-19, or 7.00-19, or 7.50-19 on the standard 19” rims?


many thanks in advace