Yes, both have 170mm cranks and take the same 9/16" size pedals. I figured they were probably pretty equally rated, possibly low end, especially with the rivets holding the sprockets together. I guess I will just use the original parts.No advantage to either, both have non replaceable chainrings. Are they both 170 mm crank arm length? Neither has offset teeth to make index shifting more percisle. Both gotta have 6/16 pedal threading. Check the pedal threads and the threads by the square taper. Are the chain lines the same for each? The chain line is measured from the center of the down tube to the inside edge of the middle chainring. The chain line determines the spindle offset for an asymertical spindle. They probably have the same chain line, 45 mm, perhaps 50?
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