Shiftcam - BMW Motorrad R 1250 R Rider's Manual

168 ENGINEERING DETAILS
be moved off more gently. It
is not necessary to turn the
throttle grip again.
If the motorcycle is stopped
on a steep incline, high brake
pressure is built up. In this
case, the brakes take longer
to release when driving off.
More torque is required for
driving off which also requires
the rider to turn the throttle
grip again.
Behaviour when the
motorcycle rolls or slips
If the motorcycle rolls
when Hill Start Control is
activated, the brake pressure
is increased.
If the rear wheel slips, the
brake is released again after
approx. 1 m. This prevents,
for example, slipping due to a
blocked rear wheel.
Releasing brake when
stopping the engine or
timeout
Hill Start Control is deactivated
when the engine is stopped us-
ing the emergency-off switch,
when the side stand is fol-
ded out or after timeout (10
minutes).
In addition to the indicator and
warning lights, the rider should
be made aware that Hill Start
Control has been deactivated
by the following behaviour:
Brake warning jolt
The brake is released briefly
and reactivated immediately.
This creates a jolt which the
rider feels.
The ABS brake system with
partially integral function sets
a speed of approx. 1-2 km/h.
The rider must brake the mo-
torcycle manually.
After two minutes, or when
the brake is actuated, Hill
Start Control is completely
deactivated.
The holding pressure
is released immediately
without a brake warning jolt as
soon as the ignition is switched
off.

SHIFTCAM

Functional principle of
ShiftCam
The vehicle features BMW
ShiftCam technology for
varying valve timing and valve
lift on the intake side. The
heart of this technology is
a one-piece shifting intake
camshaft that has two lobes
for each valve: a partial-load
cam and a full-load cam. The
partial-load cam is fine-tuned
for consumption optimisation