The payload of the bicycle carrier and the maximum when transporting e-bikes, 

The load-bearing capacity of each individual bicycle rail is not exceeded：

Rail 1:30 kg, rail 2:30 kg, rail 3:20 kg (counted from U-bracket) 

Max payload total: 60 kg.

Attach heavy e-bikes only to bicycle rails 1 and 2.  

Load the Bike carrier in such a way that the maximum payload is not exceeded.