2ND GEN COOK BROTHERS RACING 181mm ALLOY DOG BONE CRANK ARMS NO SPIDER COOK BROS

  

Set of second generation Cook Brothers Racing 181mm alloy Dog Bone crank arms with no spider. Square taper with 1/2 inch pedal mounts. Stamped Cook Brothers Racing 181mm on the arms.

They show wear from use. The threads on the pedal ends are good, you can thread a pedal into them by hand. The square taper on the non-drive side arm is good with very little wear.

The taper on the drive side shows some wear which can be seen in the photos.