I am looking to replace the rose joints on a couple of gearshift linkages on two of my bikes. When you look in the motorcycle section of Ebay then the L/H threaded bearings seem to costt around £10 each
a general search for bearings came up with these at £3.50 each
http://cgi.ebay.co.uk/6-mm-Metric-L-...1%7C240%3A1318