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When I brake hard/er with my Shimano Nexus 3 coaster brake it makes a loud screeching sound. Like really loud, everybody on the street would hear it and turn around. Since I know it's all internal all I used to do was grease it up from the outside heavily with this banana organic whatever lube I had. That used to silence it a little but not entirely. It still made a very bad sound when braking very hard.

Basically - I need maintenance/lubrication instructions for a Shimano Nexus 3 Speed coaster brake. I only found a disassembly guide but no information on lubrication.

Anybody have any clue about this???

(the break is about one year old, I ride 5 miles every working day...so yeah, shouldn't be like that)

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  • Where did you find information about 2 types of lubricants?All I could see is that Y-041 20800 Internal Hub Grease should be used for it.
    – AndrejaKo
    Commented Jun 7, 2016 at 11:56
  • You are right, what I read was not specific for this model. "An internal-gear hub with a coaster brake may need more than one type of lubricant. Follow manufacturer's recommendations." (sheldonbrown.com/coaster-brakes.html)
    – Nico
    Commented Jun 7, 2016 at 13:51
  • That may actually be correct. I have a bicycle with the same brake and I managed to find this document. It does have a lubrication part at the end, that uses a different type of oil for cleaning.
    – AndrejaKo
    Commented Jun 7, 2016 at 14:54
  • This just went away, I have no idea why. It just stopped at some point.
    – Nico
    Commented Apr 1, 2017 at 20:06
  • Interesting. I had similar issue and the local bike shop told me that there's a component inside that gets worn out with braking that needs replacing from time to time... I didn't take the time to actually track it down in the service manual, so I don't know what it is.
    – AndrejaKo
    Commented Apr 1, 2017 at 20:13

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