Vintage Cotter Pin Crank Set 52/40 w/Bike Logo. 9/16s pedal spindle diameter, English threads. Some rust on cranks, some of the teeth are getting a little sharp but are in mostly good condition. Crank bolts have not been tested, please use caution/lubrication when loosening for the first time. Buyer may need to straighten the chain rings slightly to improve performance of drivetrain. Buyer may need to change their chain/freewheel for item to function properly. Please see pictures for condition of the item. Free shipping via USPS First Class or Priority Mail depending on weight and size of the item.