Originally Posted by NickCW
Many thanks Bunny.

Originally Posted by Bunny
Revised rear Hub – Designed to reposition the rear wheel with respect to the drive belt. More details later in this document. Recommended.
.

Are you able to elaborate on this one please? Struggling to find out what it is. cheers

In early 2013, the rear hub was improved to allow around 5mm more clearance between the drive belt and the tyre. These later hubs are black anodized. However, 2012 & Some 2013 cars may still be fitted with a silver anodized hub that does not benefit from this clearance between the drive belt and tyre.
RedThree wrote up an excellent PROCEDURE for retrofitting the black hub. 12th Down the list. Here is one of his photos from the document that shows the difference between the hubs:

[Linked Image]

More info on this Talkmorgan THREAD.

Andy