I see a crank spider on the new crank as made to only have a chainring on the inside face of It.
so another crank with the same 130 bolt circle, may be more suitable..
just pick the BB length to dial in the chainline.
some who added a granny to the standard arm, swaged to the chainring,
found the added MA, torque, loosened the connection ..
Last edited by fietsbob; 03-05-13 at 10:38 AM.