Ahead=threadless steerer tubeOther brands are Salsa, profile designs, Ringle, amoeba, club roost. List goes on mate
Thanks for the list ishaw.
I might have got the terminology wrong with the stem due to only having recent experience with quills, are the bolt on stems called ahead or is that just a name given when using a converter in a threaded steerer? pardon my ignorance.
It's a threadless steerer on the Terratrax and the headset that's fitted to the bike's got a cable stop spacer for the cantis, I think it's made by YS something or other, haven't got the bike to hand today to look sorry.
Quill=threaded steerer tube