The Campagnolo Nuovo Record Crankset with 3 extra Chainrings is a high-quality cycling component made in Italy. This set includes a silver crankset, and 3 extra chainrings, providing riders with a durable and reliable option for their bicycle. The Campagnolo brand is known for its superior craftsmanship and performance in the world of cycling, making this crankset a popular choice for serious athletes and enthusiasts alike.

The Extra Chainrings are not all Campagnolo, but they all fit perfectly.

The Crank Arms are 170 MM and the threading is English. 

The chainrings are 52 -42. The extra chainrings are 49 - 47 - 46