mhm okay thanks ill look around more sry

edit: read parktools, good info for installations/taking apart
read as much as i could handle of sheldonbrown

so i need to buy a bb that will allow me to have a perfect chainline in accordance w/ my rear wheels hub and sprocket?

okay didnt have the best measuring tools but
my measurements shud be pretty accurate

tooken from a.winthrop(thanks )
english size threading
111m x 68 bb (is it limited to 111 only?)
square taper

frame spacing: roughly 130mm

rear fixed hub spacing w/o sprocket : 120mm


i read alot about chainlines and stuff but am still confused about how to measure chainline

take rear frame spacing and divide by 2. 130/2 = 65
"Measure the distance from the inside of the rear fork end (or the outside of the axle locknut) to the middle of the sprocket. (Example: 18 mm)
Subtract the dropout-to-sprocket spacing (Example: 18 mm) from the half-over-lock-nut dimension (Example: 60 mm) to determine the actual rear chainline (Example: 42 mm)"

i dont have any sprockets so how would i do this? sry if its dumb question
im honestly trying my best right now im just not the fastest learner