I have been Googling info about bottom brackets and cranks for the past few days and kept coming on this page, so I figured I would go ahead and join so that I could just ask y'all directly for info. It appears this question has been asked before, but I kept finding conflicting information. So, here it goes...
I bought a Shimano UN54 70mm (italian) 107mm spindle width bottom bracket for use on this Bianchi frame I got. After reading up on sheldon and other places, I decided that the 107mm bottom bracket would surely work with a variety of 46t cranks/chainrings. I took my rig to a bike shop today (although this bike shop has a BAD reputation) and they told me that I would need a longer bb to run a fixed gear crank/chainring on. is 107 mm wide enough? The type of cranks/chainrings i am looking at are all 46 tooth chainrings (Origin8, Sugino, etc)
So, will I have problems running a 46t chainring on a 107mm width bb on an old Bianchi road frame?
ALSO, I just realized that I put two Ls in PedallingATX. *bows head in shame* Not all people from TX are as stupid as me, I promise.