Loader Question about 4 in 1 buckets

[LabLuvR]

I sold my old tractor which had a 4 in 1 bucket. The new tractor also has a 4 in 1 bucket. My question is this. The new one has a ridge on the bottom, in the inside, about 10 inches back from the front lip or about in the middle. It runs from one side to the other. Is this normal? I thought the floor of my old was flat but maybe I'm wrong. Thanks!

 

[Peter 315]

Yes on the kubota you can just see it on the bucket in the picture...

 

[Wagtail]

Yes on my JD 4105's 4in1. The bucket I have was made by a QLD mob called "Fieldquip".

 

[LabLuvR]

Thanks guys!