gen 1 bikes had a very few small issues with cct so they recommend when the valve service is due change the cct as well,
the gen 2 had a upgraded cct so you should be ok, of course at cct interval changes that,ll still need doing, my gen1 has 24000 miles on it and is noisy, was going to wait till the valve service but after listing to that quiet bike i,ve ordered my APE cct ready to go in
rob