Bianchi Crankset & Bottom Bracket Cottered with New Old Stock TA alloy Chainrings These are from the 1950-60s and the cranks were more than likely made by Magistroni Campagnolo came out with the cottered crankset in 1958 so my guess would be these were prior The crankset is good condition but, was on a bike as was the italian thread BB, the cotters are included but one nuts is not original and is a B fit, it works but isnt identical. This was from a high end Bianchi frame It comes with new grade 25 bearings and we added the NOS alloy TA rings as they look cool and shave off. a lot of weight, its an adapter,2 chainrings 52-44, and the bolt set, its quite the valuable piece in itself so a fine upgrade for that era You could make this is single crankset for your track bike fairly easily if you are so inclined 170mm takes 9/16 pedals We're the online bike parts dealer for rare components and spare parts for your restoration and repair. Here you will find original pieces of cycling history that cannot be found anywhere else. Please use at your own risk . We decline liability for any damages resulting from use of these items, most of which are decades old. Vintage NOS Bicycle Parts is an environmentally friendly business. We use recycled packaging & materials the large majority of the time and nothing in our store has been manufactured for us or is currently being made for sale. International Customers you are responsible for paying your countries customs duties. We will not declare a lower value on customs documents.