I received a Rolf Prima Élan α from a customer for service.
The wheel inspection didn't turn up anything major.
The rear wheel center was just slightly out of true.
Both front and rear hubs had bearings in poor condition,
so at the customer's request, I replaced them all.
There was a sticker on the rim that said "CERAMIC BEARING,"
but Enduro ceramic bearings tend to have abnormally short lifespans.
The front hub had apparently failed once before,
so they'd gone to the trouble of switching it to Enduro steel ball bearings,
but those were completely shot and grinding badly.
All the bearings except the one inside the freewheel body were standard sizes,
so I replaced them with Japanese-made contact-seal bearings.
The bearing inside the freewheel body
had the same inner and outer diameters as a 6802, but twice the thickness.
This one was damaged too, and the wear was beyond just a grease touch-up,
so I stacked two 6802 bearings in there instead.
On the outside of the freewheel body, a spacer goes first on the press-fit shoulder.
This spacer has the same outer diameter and thickness as the 6802,
(I did restore it to the original setup)
The outer bearing can also take two 6802s stacked
or works with a bearing that's twice as thick.
By the way, instead of making a vague joke like a "Vigor finishing,"
I'm calling this post "Élan α (Alpha)" because
it actually says "Alpha" right there on it.
The wheel inspection didn't turn up anything major.
The rear wheel center was just slightly out of true.
Both front and rear hubs had bearings in poor condition,
so at the customer's request, I replaced them all.
There was a sticker on the rim that said "CERAMIC BEARING,"
but Enduro ceramic bearings tend to have abnormally short lifespans.
The front hub had apparently failed once before,
so they'd gone to the trouble of switching it to Enduro steel ball bearings,
but those were completely shot and grinding badly.
All the bearings except the one inside the freewheel body were standard sizes,
so I replaced them with Japanese-made contact-seal bearings.
The bearing inside the freewheel body
had the same inner and outer diameters as a 6802, but twice the thickness.
This one was damaged too, and the wear was beyond just a grease touch-up,
so I stacked two 6802 bearings in there instead.
On the outside of the freewheel body, a spacer goes first on the press-fit shoulder.
This spacer has the same outer diameter and thickness as the 6802,
(I did restore it to the original setup)
The outer bearing can also take two 6802s stacked
or works with a bearing that's twice as thick.
By the way, instead of making a vague joke like a "Vigor finishing,"
I'm calling this post "Élan α (Alpha)" because
it actually says "Alpha" right there on it.