He took a few photos of my position on the bike and then got out this contraption that was sort of like a protractor from middle school math . This thing , however , calculated the angles of my arms and legs . The goal is to hit 90 degrees -- my arm - to - torso angle was closer to 105 ( this , he explained , was why my forearms were getting fatigued during my rides ) . He would move my seat , shift my aerobars and maneuver my post height , then compare angles with the protractor - like device .
What may be the reason for this photo shoot ?
Pick the best answer from the following options:
- To sell a car
 - To sell a bike
 - To sell a skateboard
 - None of the above choices .


To sell a bike