Replacing crankset - o rings needed?

Joshgav Posts: 158
edited May 2019 in Workshop
I'm replacing the crankset on my wife's bike from el-cheapo chinese set to Shimano RS500. The old one had an O ring on the left hand side but not on the right. Do the Shimano cranks need any O rings?


  • rafletcher
    rafletcher Posts: 1,235
    I doubt it, but google Shimano tech docs for your chainset and see. Actually the instructions that come with it should tell you.
  • Matthewfalle
    Matthewfalle Posts: 17,380
    "o" ring or wavey washer?

    either way, the new crank will have everything you need in the box

    Postby team47b » Sun Jun 28, 2015 11:53 am

    De Sisti wrote:
    This is one of the silliest threads I've come across. :lol:

    Recognition at last Matthew, well done!, a justified honour :D
    smithy21 wrote:

    He's right you know.