Originally Posted by Retro Grouch
I think that it's kind of like olives. The smallest olives are called "large" and they go up from there to "Super Colossal".
Bikes tend to progress from Comp, Race, Pro, Team, and Team Issue. I assume that anything below "Comp" would be classed "Grandma".
that's it,some companies will have simply one name,no comp etc. Some companies use Sport as an entry level or first notch-up