Here's a tricky one - I have an a 1970's Swedish crescent bike with an astabula one-piece bottom bracket (http://imgur.com/a/tqJMM). I bought new cranks with which to replace these but was told in the shop they wouldnt fit my new bike. This is due to the bottom bracket shell being larger than most modern ones, similar I believe to the older Schwinn models. If this was the case, I could use a bottom bracket converter (http://harriscyclery.net/product/tru...apter-1335.htm).
However, life is never that simple and when I returned to the bike shop with this idea they tell me that my bottom bracket shell is threaded which means the converter would not fit.
The advice in the bike shop was to get a new bike :-(
I'm considering filing the bottom bracket shell smooth if the dimensions of the converter would fit.
Has anyone any advice? Any similar story? Or anyone with a converting part (i believe there was one made in the 80's)
Any help would be great :-)