Fidusa Mechanics 130BCD Pista Track Chainrings 1/8"

Fidusa Mechanics Pista Track Chainrings 130BCD 1/8". • Custom made CNC machined pista/track chainrings for 130BCD. • Black anodized. • For 1/8" chains. • 130mm 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.