Technical & Reference Section > Tech and Restoration

Chain Rub?

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Dark Diggler:
If its a cassette hub, take off the drive sprocket and move the spacers round so the cog is nearer the hub, if there is no spacers then usually flipping the sprocket will re space it nearer , this will allow the chain to clear the stays, also make sure your front sprocket is spaced correctly or your chain line will be fruity :daumenhoch:

telelogic:
I'm sure the external BB isn't helping matters!

that must hold the sprocket a good centimeter further out than a normal BB?

Dark Diggler:
Are there any spacers on the drive side of the BB? (between the external cup and the frame)

Get some pics up

MartyC:
I should have asked this before, so just to clarify, is the chain rubbing on the Chain Stay or the Seat Stay?  The Chain Stay being the one that runs from the bb  to the dropout and the Seat Stay from the dropout to the seat tube?

If the Chain stay; is it rubbing at the dropout end ot the bb end?  Ifthe bb end sounds like the chain alignment is out of whack and spacers on the bb and the hub might be needed.

Pic would be helpful  :daumenhoch:

telelogic:
Rubbing on the seat stay.

About three inches from the hub.

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