I happen to know a body in both of thosejarndice wrote:Because http://www.robotgear.com only sell in the Australia and New Zealand area the better alternative in the UK is
http://www.proto-pic.co.uk
They are selling the Lego 3mm wheel adapters for £2-72 a pair plus £1-50 postage.
Anyone wants stuff from them , get it sent to me and I will forward it on.
Pm for postal address if required, I’m happy to help