Smiley
03-25-2005, 12:49 PM
My new 120 mm rear spaced Kogswell frame is on the way . I plan on using a spare 9 speed octalink crankset off my wifes bike . I will only use a 42 tooth cog . So my question is what lenght BB do I need for proper chain line ? 109 mm will that do it or does shimano make a track BB length for this line ? Thanks