I meant to post about these last year when I found them but the bike got put on hold when I started building the cnc plasma cutter.
So after much searching I found a set of bearing that fits the GSXR front end axle and the Honda CB stock hub. Now I have not actually fit everything together yet as I’m just starting the build again. But I cane across the bearings tucked away in the parts box with the axle and remembered I had not posed about them. Thy are a double row rubber sealed angular contact bearing so thy should be just about perfect for the job. I remember back when I ordered them it took about a month to get them as thy at that time where only found from one supplier over seas. The number is 3905-RS and made by Fushi.
Here is a picture of one bearing sealed in its packaging and the other fur onto the GSXR axel (perfect fit).