I recently bought a couple of Duncan Wheels from Zan Navi (over and out!) :-P. One was an old Duncan Fire Wheel. I decided to bearingize it and one of the brand new ones. This one’s mine. The other one went to my son for his birthday. Here’s a couple of pics of the Fire Wheel. The thread inserts I got use a standard M4 axle, too!
http://i70.photobucket.com/albums/i120/Ricerocket00/Yo-Yos/BearingizedFireWheel2.jpg http://i70.photobucket.com/albums/i120/Ricerocket00/Yo-Yos/BearingizedFireWheel3.jpg http://i70.photobucket.com/albums/i120/Ricerocket00/Yo-Yos/BearingizedFireWheel4.jpg http://i70.photobucket.com/albums/i120/Ricerocket00/Yo-Yos/BearingizedFireWheel5.jpg http://i70.photobucket.com/albums/i120/Ricerocket00/Yo-Yos/BearingizedFireWheel.jpg
I have one more, and am not sure if I’m going to do it with a SPYY size bearing, or as a large bearing. Hmm. We’ll see!