I could hang the weights on the front. I ran into problems when trying to secure them to the frame using the bolts that came with the weights.
I think if you tried to put the suitcase weights on the
B2920 you would understand the problems that I ran into. If you don't have a MMM at least you wouldn't run into that problem.
The suitcase weight bolts fit through the additional bracket just fine but not the frame.
Granted, I did consider drilling out the holes so the bolts would fit or using smaller bolts that fit through the holes. I didn't want to drill into the frame. I didn't want to change the bolts that secure the weights as the bolts that Kubota supplies are good for securing the weights.
Basically, Kubota does make an additional bracket designed to accept suitcase weight so I just bought it for simplicity.