What are the rings on the rear cones for?

jkallay

New Member
Please excuse the naive question, but the axle for the front-to-rear wheel conversion has a metal ring around each of the cones. What are they for? It looks to me like they're too small to replace the hub's existing seal rings.
 

jkallay

New Member
Must be just packaging

I don't see them in the image in the instructions so I'll assume they're just packaging.
 
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