Originally Posted by
dddd
I commented on the SI term as a hoax to elicit some explanation from the OP, but thinking about it I may have been right.
Yeah, I realized the hoax after my first post. Hence the second less serious comment. I can be slow before coffee...
It seems the OP is referring to indexing, but we don't really know.
There have been a few silly in-house terms introduced at Interbike over the years. I still think Q factor is kind of dumb. Chosen cuz it sounds serious I guess. Q factor means something very specific in engineering/science, and it is not pedal to pedal width.