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I would hang toward post #59, Japanese steel used there is way too soft even for Norton fine and it will tear the cr-p out of that soft steel. Sandpaper at 400#, dry, and simple work of a minute and part still looks fine. I too used lots of sanding cloth on printing shafts and bearings, they are substantially harder steels than those bike parts. I'll use the cloth for bigger like rusty parts with depth to the rust, never surface only. Only an opinion of course.
 

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Wouldn't sanding with wet/dry fine sandpaper be better? There can't be much that needs to be removed I wouldn't think and strips of sandpaper is really easy to use on shafts if you have enough room for both hands to work it.
There are very fine files. And there is very gnarly rust. Then there is aluminium components, which is the expensive word for bits. Sandpaper will likely work. Other stuff will work. OP may have to pry off the lever. Or it might be something else. UK
 

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Honda Tiderls, Ural Solos & BMW R60/6
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Wow, did I stumble into a porno site ? o_O all this talking about stiff shafts....... ( /SARC\ don't blow a gasket please )

In any case, I tend to lean towards the gentlest solution first, as mentioned Japanese steel is good quality but also mild and easy to damage .

I use my favorite penatrants then wire brushes until the corrosion is gone then I see what's what and rarely need to file but then I live in the Desert where rust tends to be minimal if pervasive .

Also, some here are Journeymen, others are basic DIY'ers and so don't necessarily know how to use a file gently .

Once the shaft proper has low spots the brake pedal will wobble and brake performance suffers .


In all cases the use of long fiber or waterproof grease ("Marine grease") is wise .

I tend to buy things cheaply when I see them, a tub of grease even in my shop lasted years , yard / tag / estate sales are often the_place to find grease, oil and LACQUER PAINTS for pennies on the Dollar........
 

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That's fine, the quality is in the final mix .

I'm not knocking Japanese quality here .
 
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