Shimano "collar" for the freewheel - where to buy

roadiesean
roadiesean Posts: 577
edited April 2011 in Road buying advice
I have just converted my Fulcrum R1's to Shimano from Campy and the casssette is floppier than a floppy thing, I need this fabled collar/spacer thing that you put on before the cassette, surprisingly Campy did not provide one with the freewheel - they really need to sort out there customer services its pants.

Any ideas where I might get one ???? Why do I need one on this one and not on my other Shimano cassetted RZeros ?????

Thanks all

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