roof

[Waldo]

According to the manual one may put up to 50 kg on the roof and still open it.
I put a 44 kg boardbag on the roof but it's impossible to keep it open.
I guess the info only applies to the electric roof?
Anyone any info on the real maximum load or is there a locking system I overlooked?

 

[choplee]

The electric roof does seem to lock into position when open and closed ,so the manual roof I can see not being able to handle the weight on it ...