I'm looking at one of these frames but I can't figure out what's going with the BB sizing. Apperently it's a Cannondale proprietary size? Hollow SI?
From the 2005 Cdale catalog:
"Bottom Bracket: Oversized hollow splined spindle w/sealed bearing"
Not very helpful. Can someone shed some light on this for me? I'd like to know what my options are for this bike, thanks!