The cut in the tire sidewall:
Threw a few parts on for fun. May swap over to my Super Record group, the Cyclone GT just looks so out of place and I don't think the chain I have will play all that well with it unless I stay on the small ring (it was shortened for my Gazelle running the Super Record derailleurs).
(no comments on how a TT doesn't need a 12-28 cluster either.
)