That's not how the word works.UpFromOne wrote: ↑Fri Oct 22, 2021 11:33 pm2. The frame bits are very, very proprietary. Even by Spesh standards. (LOL, he just said "standards"!) The bottom bracket cable guides don't seem to fit any other model. While the rear derailleur mechanical cable guide fits ONE other Spesh model ('17 Epic), most if not all these bits are unique to the frame. Sure, lots of frames have proprietary frame bits. But the Aethos outdoes it.
It doesn't matter whether the one Specialized cable guide that works on the bike can fit 50 other models or no other models, it's still the one part you can use therefore it's equally proprietary.