I was looking at touring cams 2448 and 2450 - sorry wrong writing - both with groundcircle of 22,9 mm
then i was looking at some other cams 2444 (to hot) and a 2454 (scrambler) also with both with a groundcircle og 22,9 mm
It seems (from photo) that only the ZB cams 2436 and 2438 have the bigger gronudcircle as 2420 - but i an not sure