Up for sale is a Haro Master crank set from 1987 that includes a power disc and a uni-direction chainring and all hardware less bearing cups(have a set available if needed). This vintage BMX bike component is compatible with various types of BMX bikes such as old school, flatland, and racing. The crankarm length is 175mm and the color is black, perfect for any bike restoration project. This set includes a crankset with chainring, chainring bolts, bottom bracket hardware(except bearing cups) and is sold as a single unit. It is a survivor condition, un molested. A must-have for any BMX enthusiast or collector.