The rattle occurs at the same point of rotation of the cranks, so I guess the problem lies with them or the chainring.
You'll minimise this if you tension your bolts properly. It's a bit hard to explain (but not hard to do).
Read the bit halfway down this page about Centering Chainwheels. It works.
@miro_o started
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You'll minimise this if you tension your bolts properly. It's a bit hard to explain (but not hard to do).
Read the bit halfway down this page about Centering Chainwheels. It works.