Four years too late...
The old Superduke of Bridgey's has been somewhat neglected lately. And when I say lately, just the last four years or so. It's still pretty clean, don't get me wrong, but legend has it Boudicea was using the same tyres on her chariots.
Now I wouldn't have bothered putting up this post for a pair of new Pirelli Rosso II's but, what was concerning, was the state of the sprocket carrier bearings. Well, one in particular.
The Superduke has some great engineering plusses, one of which is the two bearings fitted to the sprocket carrier. Four bearings in all to let the wheel spin in the manner to which it's become accustomed. Imagine the rigidity, the ability to keep that wheel inline no matter what angles it's trying to put down the power.
As much as I like to take the piss, it's a bloody good idea.
But during a routine tyre change, it became obvious that all was not well in the bearing department, and the sprocket carrier was extremely notchy. The two spacers that go in from both sides were rusty and I wondered if the water had been held in there and got past the seals.
The two spacers on the piece of wood need to be knocked out first. Then the bearings can be hit out, one from each side taking note of the small spacer in between.