Campagnolo square taper (ISO). 50 tooth chainring. Requires a 111mm spindle. Bottom bracket not included. 592g without BB. Intended for use with 1/8" chains.
Brand: Campagnolo
Model: Record Pista
Length: 12
Width: 9.4
Height: 2
Weight lb: 1.75
Part Number: FC01-REPI550