I received an EA90 Aero (aerodynamic wheel) from a customer.


The customer had done a hub overhaul themselves.
When tightening an aluminum end nut onto the aluminum hub axle,
they heard an unpleasant "crunch!" noise as the two aluminum parts seized up,
and now they're stuck. They wanted to know if anything could be done about it.
I had a feeling this might turn into a big job with a vise and hub cone wrench, but
before going that far, I tried the earlier step of using a Wera Allen key
and somehow managed to get it off.
While I was at it, I checked the rest of the wheel—the centering was spot on and there was barely any runout.


The front wheel was also perfectly centered, but
it was so unnaturally perfect that I just had to ask the customer about it.
"It wasn't serviced by me in the past," "I just bought it off the shelf and have been using it as-is since then."
Hmm, that's frightening.