How to reduce brake lever rattling sound at the pivot pin either by a fix or by replacement?
The lever of this specific model is not replaceable. So you can try your luck with a thick grease, or by &quot;inserting&quot; some layer of foam, or gluing little patches of old tubes in between the lever and the housing, close to the rivet.
The rattling is happening because of some play between the parts. The weight of your finger is enough to keep the parts in contact ---&gt; replicate that by putting some material in between.