I noticed that the EBB tends to make just a slight noise if its running dry between the EBB and the outer casing of the BB. Found a great remedy, on a monthly basis, I remove the lower seat tube cage bolt and give two squirts of my engine fogging oil down the tube. It keeps the EBB and BB shell just lubed enough to keep any noise at bay. Also it provides that extra protection against the dreaded rust suprise if you run a dry EBB and BB. Works great and is easy as pie.
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