According to the parts book, the stator part number is 29967-89A (superseded to 29967-89C)

About £130 at Riders.

Some options here:

http://www.thehogfatheronline.com/catal ... =29967-89A

There is an 11% discount by typing UKBEG

I had a look at Twin Motorcycles and the only option from their parts book is:

http://www.twinmotorcycles.nl/webshop/a ... C&aid=5862

which is 155Eu plus VAT

Then I did a search for stator and found:

http://www.twinmotorcycles.nl/webshop/a ... 002_Buells.

Which is significantly cheaper...

And only £49.10 at Hogfather (don't forget the 11% discount):

http://www.thehogfatheronline.com/catal ... q=DS195039

The regulator:

74566-98Y (or Y0302.9) is around £82 at Riders.

Or from Hogfather:

http://www.thehogfatheronline.com/catal ... DS21120328

You will need to make sure the wires are the correct length and the connectors correct though.

More info here - http://www.dragspecialties.com/products ... r=21120328

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08 Specialized Langster