Fidusa Mechanics 144BCD Pista Track Chainrings 1/8" 50-66T

Fidusa Mechanics 144BCD Pista Track Chainrings 1/8" 50-66T. • Custom made CNC machined pista/track chainrings in sizes 50 – 66 tooth. • Black anodized. • For 1/8" chains. • 50-66t. • 144 mm BCD. • Light weight aerodynamic profile for extra stiffness. • About Chainrings. • Chainrings are fitted to the crank arms and come in single, double or triple configuration. Most geared bikes use a 3/32 inch width, whereas 1/8 inch is the popular choice for track bikes and some single speeds due to its increased strength which is needed when riding a fixed wheel. • Chainrings are available in a number of formats, these are known as PCD's (Pitch Circle Diameter) or BCD's (Bolt Circle Diameter), this is the spacing of the bolts that secure the rings to the crank arms. • 144mm are compatible with most track/pista cranksets such as Miche Advanced, Shimano Dura Ace and Campagnolo Record.