Maybe the exalith 2 brake tracks, think the original exalith wheels were earlier poss around 2011, they had curved lines and were unidirectional I think, the exalith 2 have straight lines.
Amazing braking performance on them even when wet, but I chewed through the first set of pads or so.
Can you tell me what those wheels are??
Edit: old ksyriums??
This looks spot on already.