Backrest width

using the side wings to adjust the Change the width of the backrest using the side wings to adjust the lateral support.

    See also:

    Aerodynamic optimisation of underside panelling
    As the excellent drag coefficient (cd = 0.26) would suggest, the aerodynamics of the new BMW 3-Series have been intensively honed in a state-of-the-art wind tunnel. The optimised aerodynamics also ...

    Changing the station
    Press the button. ...

    Increasing desired speed
    Repeatedly press the lever to the resistance point or beyond, arrow 1, until the desired speed is reached. ▷ Each time the lever is pressed to the point of resistance, the desired speed i ...