Picked up Crank today looks really nicely done and feels a lot lighter, has been knife edged, flattened and balanced
then due to comments, spent hours looking into Frenchies and KE,L,B Cranks
End result... Its staying, I have found quite a few builds where they have been used, no one with any issues.
This one in particular seems to be very nice..
The only questions against are the end balance and how it effects harmonics at static rpms
To combat this I would suspect the use of either a fluid or stock harmonic damper would be best over moving to alloy pulleys, helping to maintain harmonic balance while still freeing up rotating mass... Opinions?
To be sure I am going to get it to a machine shop and get it re-balanced with full clutch, pulley, and rods/pistons