Alternatives to All-Ball Bearings

[WIZARD_IKARI]

Finishing up a 2008 r1 front end swap, and looking at the all balls conversion chart it is calling for a 99-3538 bottom bearing, which hasn't been in stock for a good minute. Is there any potential alternatives, different manufactures, or even just using the stock r1 bearings? Pretty new to swapping things on this bike, so any help would be mad appreciated!

 

[trepetti]

Finishing up a 2008 r1 front end swap, and looking at the all balls conversion chart it is calling for a 99-3538 bottom bearing, which hasn't been in stock for a good minute. Is there any potential alternatives, different manufactures, or even just using the stock r1 bearings? Pretty new to swapping things on this bike, so any help would be mad appreciated!

You might find this helpful.

There are only a few companies that make bearings. If you still have the bottom bearing, you should be able to get the manufacture's part number.

 

[Gary in NJ]

Knowing the specs for that bearing you may be able to find an alternative, or even a Yamaha part number:

ID = 31mm
OD = 55mm
Width = 18mm

 

[WIZARD_IKARI]

I still have the bottom bearing, tried using it in the frame and honestly think it may work but going to double check. Ordered the top bearing today, can't wait. Appreciate the answers, very helpful!