Mountain Bike Suspension Swing Arm Mountain Bike Suspension Swing Arm from Robert Bynum Mountain Bike Suspension Swing Arm This was a form and function study on changing the look of a pivot arm for full suspension mountain bike. gLike Mountain Bike Suspension Swing Arm This was a form and function study on changing the look of a pivot arm for full suspension mountain bike. Industrial Design Engineering Share R 7 n Robert Bynum Industrial Designer New York, NY Follow Contact