What am l doing wrong...l bought a Campagnolo bottom bracket as per the photo Italian thread 115mm spindle, for my Centaur triple crank. To fit my Italian Veneto frame, except that it doesn't ! I can't get it to even begin to screw in. Is it possible that the frame thread is English and should that make a difference anyway ? I don't mind hanging onto the campag. bb, it may have a future use but what should l do about finding the correct one for the frame.