I know the bb's are not supposed to be serviced like this but does anyone know what size/type of bearings I need and where I can get them from , cheap?

Thanks

Kaesae will know. He's an expert.

Betd

"Swop out the old bearings and fit the new stronger new style bearing. The new bearings are nearly 30% stronger than the standard bearings. We get rid of that awful nylon shim and fit the bearing straight onto the Hollowtech II axle. It also comes with a better seal, if you want to use it as the bearings are fitted with rubber shields. It does help to keep the muck out. As an opening offer, for a limited time. If you send me your bearing cups i will change the bearings for you at no extra cost.
Price: £20.00 ($30.20,€22.40) "

The next person to post is a turkey!

http://www.akbearings.co.uk for cheap ones, look for 6805 2RS.

Beware some shimano BBs used 6mm (older ones apparently), although im told newer ones use 7mm.