Joined: Aug 2009
Posts: 7,711
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From: Berkeley, CA
Bikes: 72 Cilo Pacer, 72 Gitane GT, 72 Peugeot PX10, 73 Speedwell Ti,l, 75 Peugeot PR-10L, 80 Colnago Super, 81 Zinn, 85 ALAN Cross, 85 De Rosa Pro, 86 Look 753, 86 Look KG86, 89 Parkpre Team, 90 Parkpre Team MTB, 90 Merlin
It is possible to bend a forged crank arm. Many years ago, I got side-swiped by a van and my 1st-gen Chorus crank arm ended up with a bend.
Your bend could have been caused any number of things Backing into something with bike on a rear car rack might do it.
I would want to test if the pedal axle is perpendicular to the seat tube and parallel with the ground/other pedal axle when threaded onto the crank arm.