dilon42

Could someone please help me identify what type of BB I have on my old 80s/70s schwinn traveler. Also, what tool(s) will I need to remove it from the frame? I know that its a 68 mm bottom bracket shell. I want to try to replace it with a new bb that gives a straighter chain-line for a fixed gear conversion, but I don't know what type of bb will work for this bike. What type of bracket is this, and what are my options for replacing it? Thanks for your help...

Here are some pictures:
https://s307.photobucket.com/albums/n...roject%20bike/

pastorbobnlnh 

I'm sorry but you have a bad link. I have a '79 Traveler and I used the same tools for a vintage Nuovo Record BB to remove mine. You just need a Shimano or even a Nashbar BB. Hard to know what length spindle until you start to experiment with the crankset you will use. Probably 110-115mm.

https://www.nashbar.com/profile.cfm?c...tom%20Brackets

dilon42

I was told that I will probably need a shorter than normal spindle length to achieve the correct chain line for a fixed gear. Do you have any other suggestions for bottom brackets maybe around the 103 mm length? What tools did you use exactly?

pastorbobnlnh 

Park Tools:

HCW-4 Crank and Bottom Bracket Wrench


HCW-5 Crank and Bottom Bracket Wrench


I kind of doubt you will need a spindle that short. Take the frame and the crankset to the LBS and have them help you measure. Best of luck.

dilon42

thanks for the help, pastorbobnlnh. One more question, are these the same tools that I could use to install my new bb?

pastorbobnlnh 

If you use a cartridge BB, no, they will not work. Many cartridge BB use a Shimano tool, which the Nashbar BB uses.