Shimano Dura Ace 1st gen crankset 53/42 chain rings Silver 170mm

  
This vintage Shimano Dura Ace 1st generation crankset is in good overall condition. Original shimano chainrings are 53 tooth and 42 tooth both with a 130 mm bolt circle diameter that is standard for Shimano. The crank set has 170 mm crank arms.