Crankset Arms with original Self extracting 7mm bolts These are left hand threaded so learn what you are doing before removing these or installing. Please look at photos Has 7mm reversed threaded self extracting bolts, THREADS ARE Perfect 4 date code 1984 9/16 pedal threads. Lots of little scratches and some strap rub. These would polish up nicely if you want a high finish crankset. THESE ARE SO RARE, THEY EXIST BUT ARE VERY RARE IN COMPARSION TO CAMPYS ROAD GROUPS OR EVEN THE LOWER END MTB GROUPS. THIS IS FOR CRANKARMS AS SEEN ONLY, NO CHAINRINGS, CHAINRING BOLTS, SPACER OR LOCKRING. These take a 110bcd large ring and the other 2 are splined. It is way different than anything else out there. Its takes a splined campagnolo ring like a freehub and uses an english bottom bracket lockring to hold it on. Vintage NOS Bicycle Parts. For thousands of new old stock, vintage and modern bicycle parts. 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.