Low car diet
Join Date: Aug 2007
Location: Corvallis, OR, USA
Posts: 2,407
Bikes: 2006 Windsor Dover w/105, 2007 GT Avalanche w/XT, 1995 Trek 820 setup for touring, 201? Yeah single-speed folder, 199? Huffy tandem.
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68 refers to width of the BB shell in mm, so yes, it will fit. The spindle length (107mm, 113mm, etc) is determined by the crank. If you'll be using the original crank, then it will alter the chainline. But, if you have a matching crank, then, well, it will match. Edit: since you said you bought the "frame" you may not have an "original" crank. Anyway, just match the spindle length to the crank you'll be using and you'll be good to go. The frame won't care what the spindle ultimately is, only that the threads and width (English, 68mm) are correct.