what the does 6bars mean on my bike it says to inflate to help I'm confused how

[Crypto]

much do i inflate it to.? what is this mathematical equation about i used to hate math class now I'm faced with this nonsense please help. how many pounds is that

 

[silverbullet]

1 bar = pressure of the atmosphere at sea level = 14.7 psi

 

[cant_think_of_1]

87 psi