The S1000RR received a full model change
for 2019 at the November 2018 EICMA, Milan, Italy. The 999
cc (61.0 cu in) four-cylinder engine is entirely new, which
is claimed to produce 152 kW (204 hp; 207 PS) at 13,500 rpm
(up 4.5 kW (6.0 hp; 6.1 PS) from the previous iteration) and
113 N⋅m (83 lbf⋅ft) of torque at 11,000 rpm. This new engine
employs BMW ShiftCam technology on the intake side, which varies
intake valve timing and lift. The system has sliding concentric
outer shafts, with two different cam profiles on them, on a
splined inner shaft with the drive on one end. An ECU-contr
olled motor switches between low- and high-speed cams at 9,0
00 rpm in under 10 milliseconds, which produce soft, low-lif
t, short-duration cams for low-down and midrange torque, the
n a more aggressive profile cams for peak power production.
The outer shafts are moved by a movable pin engaging in a ca
mmed slot on the shaft, which slides the outer camshaft sec
tion left and right as needed. BMW claims the addition of t
his system gives the S1000RR a more linear torque curve tha
n its predecessor.
Aside from power increase, the S1000RR's engine ga
ins a weight loss of nearly 4 kg (9 lb) and a more
compact external design. This was achieved through the
use of specialized parts, like hollow-bored titanium int
ake valves and new DLC rocker arms that are said to be 2
5% lighter. The camshafts are now directly powered by the
crankshaft, thus eliminating the need for the previous idl
er gear. The water and oil pumps are combined into one com
ponent for a compact design. The exhaust system is also 1.28
kg (2.8 lb) lighter on the 2019 model, which contributes to a
total 11 kg (24 lb) loss in comparison to its predecessor. T
his brings the overall curb weight of 197 kg (434 lb).