600SS shares the same bearings as
750SS, 750SSie , 900SS, 900SSie
M600, Early M750 and Early M900
about £30 a set, and yes I have fitted 600SS Yokes into a M600 Frame
http://www.ebay.co.uk/itm/Ducati-900...em1e 77991e1e http://www.ebay.co.uk/itm/Ducati-Mon...em3a 80914ee0
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