Three sealed cartridge style bearings two on the chain ring side and one on the non drive sidefits all years and models of daytona racing triple centaur veloce and mirage crank sets also fits 1993 and later athena and pre 1995 record and chorus crankswill not fit older campagnolo nuovo or super record road cranks which require a 115 mm spindle with a 5 mm drive side offset all newer campy bottom brackets are symmetrical and lack any drive side offsetcomes in two threading configurations