If you hit something with the pedal like the pavement, the pedal spindle will bend and the crank arm will bend also

even the best of them, with enough force, will bend.. like it picks up the bike rear wheel a one extreme .
pedal hits ground at 5:00 and the momentum picks up the bike as it is pushed over BDC, by forward motion..

Spindle bent?there will be a feel of the pedals rotating up as it goes around.


Note some crank designs require the spindle on the right to be longer
than the spindle on the left... if that is what you define as offset.


splined crank arms can be put on the wrong spline. and misaligned .