I'm converting a 1978 Raleigh Rampar R-1 into a fixed gear. I replaced the old 3 ring crankset with a new single ring Eighthinch crankset. I tried replacing the old spindle with a new one with the same size. Its too long for the single ring crank! The cog and crank do not align accordingly...therefore, my crank needs to be closer to the frame, ie, i need a shorter BB spindle.
I've read online to measure the back dropouts which will tell the correct BB spindle width, so the cog and crank will be aligned. The back dropouts measure 130mm, which I've read to need a 110mm BB spindle. I know the BB width is 68mm so I need a 68 x 110mm BB...IS THIS RIGHT???
This has become a pain because every bike has different lengths, threads, etc....I just wanna ride! If you can help, please inform! Thanks a lot!