HD bearings are as follows:

ALL of them have an OD of 52mm

Some of them have a width of either 15mm or 21 mm

There are 3 ID sizes 3/4, 1 inch and 25mm

The older bikes used the 3/4/ 21s' some 06s & 07s' I think used 1"ers and after that I think it was all 25mm and the thinner 15mm width bearing. (bad idea IMO)

I am doing what Robbie kind of did, with older wheels on a newer bike but I am going with wider 21mm, 25mm bearings and a shortened inner spacer.

 

thanks for the input guys. i ordered new 1" bearing, just waiting on delivery. ill take some measurements once its all apart and post what i find for future reference. hoping to get to it this weekend and will post pics of anything i find needs special attention

 

Did you order 1" x 15mm (not oem, but available) or 1" x 21mm (oem on your 06)?

Edit: Also since you're using Lowrider wheels, i assume you're converting to dual disc?
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i ordered 1"x21mm. ive read the swith to 15mm was to fit with the abs but my bike isnt equipped with that. i do want to convert to dual disc down the road but wont be happening right away

 

Got the swap done. Was able to use all stock spacers and replaced the bearings. Front bearings stayed at 21mm wide and had to use 15mm width bearings in the rear. Need to purchase the right lower leg so I can run the dual front brakes. I have everything else already. Bike feels a lot tighter with the new wheels compared to the spokes.