Sorry for the noob ?
Bought a mtb @ a pawn shop for $9
It's a cheap dept. store bike Roadmaster Tracker
One piece crank
ID of the headtube 1 5/16"
ID of the headset cup 1 1/8"
I thought to determine the measurement for the headset was the head tube diameter.
So is it the measurement of the headset cup?
So will I be able to buy the more common 1 1/8" threadless headset