Afaik, the ceramic axis runs inside a sinterbronze-bushing. The adjustment is made individually by hand - that' s why you can't get a single ceramic axis.
Different Clearaudio tts have CMBs with different lenght:
OK - here are the current, corrected end-consumer prices in Germany inclusive 19% value added tax in bold.
18 mm - Emotion - 240 € / 320 €
28 mm - Champion, Champion Level 1, Champion Limited und Solution - 555 € / 640 €
38 mm - Ambient und Avantgarde - 630 € / 720 €
68 mm - Champion Level II, Master Solution, Maximum Solution und Avantgarde Magnum - 1050 € / 1180 €
78 mm-1 - Champion Level II SME und Anniversary - 1210 € / 1440 €
78 mm-2 - Master Reference - 1260 € / 1560 €
Regards Toni