Choosing the right/cheap bottom bracket
#1
Choosing the right/cheap bottom bracket
need help finding the right bottom bracket for this frame. This bike originally came with a cotter pin bottom bracket and im trying to upgrade to a square taper bottom bracket but i dont know which one to get. I believe its a schwin varsity but im not sure. please help!
heres the bike:



heres the crank ill be using. just a simple single speed crank from ebay
heres the bike:
heres the crank ill be using. just a simple single speed crank from ebay
#4
The correct BB spindle length is determined by the design of the crankset. You need to identify the crank first.
It's probably an English threaded BB shell on the frame, you can check this by measuring the width of the shell. If it's 68mm across, it's a pretty safe bet that it's English threaded. If it measures 70mm, it will be Italian.
It's probably an English threaded BB shell on the frame, you can check this by measuring the width of the shell. If it's 68mm across, it's a pretty safe bet that it's English threaded. If it measures 70mm, it will be Italian.






