2004–2020

The revised K Series range of water-cooled inline-four cylinder models began in 2004 with the BMW K 1200 S a sport-tourer. The K1200S was primarily designed as a Super Sport motorcycle, albeit larger and heavier than the closest Japanese competitors. Other additions to the K Series range were the 2005 BMW K 1200 R naked bike and related 2007 BMW K 1200 R Sport semi-faired sport-tourer, and the 2006 BMW K 1200 GT sport-tourer. The engine capacity of the K Series was expanded to 1,300 cc (79 cu in) for the 2008 BMW K 1300 S sport-tourer, the 2009 BMW K 1300 GT sport-tourer and the 2009 BMW K 1300 R naked bike.

In 2011, two six-cylinder models were added to the K Series range- the BMW K 1600 GT and BMW K 1600 GTL, the former intended as a sport-tourer and the latter as a luxury-tourer.

The R Series range of flat-twin models was also updated in 2004, beginning with the BMW R 1200 GS dual-sport, which was powered by a new 1,170 cc (71 cu in) "oilhead" engine. This was followed by the 2005 BMW R 1200 ST sport-tourer, the 2005 BMW R 1200 RT tourer, the 2006 BMW R 1200 S sport-tourer, and the 2006 BMW R 1200 R naked bike. In 2014, the redesigned BMW R1200 RT used a water-cooled engine and a wet clutch.

The BMW HP2 Enduro dirt bike was introduced in 2005, based on the BMW R 1200 GS. In 2007, the HP2 Enduro was joined by the road-biased HP2 Megamoto fitted with smaller alloy wheels and street tyres.

As part of the F Series range update in 2006, the BMW F 800 S sports bike and BMW F 800 ST sport-touring models were introduced, both powered by a Rotax parallel-twin engine. The BMW F 650 GS and BMW F800 GS dual-sport bikes were added to the range in 2008, both using the same 798 cc engine, despite the different names. In 2009, the BMW F 800 R naked bike was introduced and in 2013 the BMW F 800 GT replaced the BMW F 800 ST sport-touring. In 2009, the BMW G 650 GS replaced the BMW F 650 GS.

The BMW G650X series range was introduced in 2006, co-developed with Aprilia and powered by a Rotax single-cylinder engine. The range consisted of the BMW G650 Xchallenge dual-sport, the BMW G650 Xcountry dual-sport and the G650 Xmoto supermoto models. The BMW G 450 X hard-enduro model was produced from 2008–2010.

In 2007, BMW acquired Husqvarna Motorcycles, including its production facilities and staff, from Italian manufacturer MV Agusta. BMW's ownership of Husqvarna ended in 2013, when the company was sold to Pierer Industrie AG.

The BMW S 1000 RR sport bike was released in 2009, to compete in the Superbike World Championship. It is powered by a 999 cc (61 cu in) inline-four engine producing 193 bhp (144 kW).