#369000 XRAY XB4 High-Speed Ball Bearing Set (22)
http://www.teamxray.com/teamxray/pro...ngs%20%2822%29
These are not needed, taken from a brand new XB4 kit. The bearings are in a sealed unopened packet.
These are £54.99 in the shops, looking for £30 + 90p postage in the UK. Will post to the EU for an extra couple of pounds.