How much testing has been done on the new cranks? September 26, 2017 15:59 Updated A lot. We started development of the new cranks before Eagle™ itself was started. Related articles Since the new Eagle™ cranks are lighter, have they lost any strength or stiffness? Why is it called Eagle™? What size and type of tool is required to remove XPLR 1x direct mount chainrings from the crank spider? Comments 0 comments Article is closed for comments.