BMW K 1300 GT User Manual

Page 25

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BMW

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Information

10/2008

Page 25

and resting via a boom arm on the main frame. This progression ensures
a sensitive response of the suspension together with improved traction while
nevertheless offering suffi cient reserves for riding with a passenger.

The fi nal drive housing is tailored to the inner contour of the angle drive,
avoiding even the slightest waste of space. And being calculated with utmost
precision, the crown wheel, fi nally, is very light in order to save additional
weight.

To meet the greater demands for power and torque, the new K 1300 S comes
with a newly developed two-stage drive shaft also offering advantages in
the use and operation of the gearshift, as well as a fi nal drive unit with a larger
module.

For reasons of weight, the wheel fl ange is made of aluminium. Through its
larger diameter, the fl ange gives the wheel perfect support, again allowing
weight to be saved around the hub of the rear wheel. The optical highlight of
this compact and elegant lightweight structure is of course the 50-millimetre
hole drilled into the axle shaft and axle drive housing which, through its large
surface and fl ow effects, enhances the removal and dissipation of heat from
the fi nal drive.

Electronically adjustable ESA II suspension –
now adjustable at the touch of a button not only for spring
and damper action, but also in its spring rate.
Suspension is provided front and rear by extra-fi rm gas-pressure spring
struts on the K 1300 S. Spring travel is 115 millimetres or 4.52" up front and
135 millimetres or 5.31" at the rear.

In standard trim the rear spring strut allows infi nite adjustment of damping
forces in the rebound mode. And to adjust to various loads and forces,
the spring base may be varied by a hand wheel infi nitely over a range of
10 millimetres or 0.39".

As an option at extra cost the rider of the new K 1300 S may adjust not only
damping on the front and rear spring strut as well as the spring base (spring
pre-tension) of the rear spring strut, but now also the spring rate at the rear
and, accordingly, the “hardness” of the spring – and all this conveniently at the
touch of a button.

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