It is Plastic very hard... and That is the same thought I had so it is now my assumption as well. This one is sacrificial if need be to lean, I might just try to drill into that plastic ring to make a more sturdy contact point and then use a pin spanner... I can always fill the holes later...we'll see. Thanky ou for your thought apparently these are some kinda rare 1980's BMX hub that people really want but I am not sure if they use em but they are expensive on the auction site...
Originally Posted by
pastorbobnlnh
@
kc0yef, this is only a guess.
turn... that ring clockwise to loosen. Be careful, especially if you suspect it is plastic (my guess) and acts as a seal.
Once removed (it might be the retaining ring/outer bearing race) you should see the outer bearings (if metal), or another metal ring (if plastic). Hopefully this helps. Additional pictures posted might prove helpful.