F750GS

The BMW F 750 GS is a mid-range all-round enduro motorcycle from the BMW brand. The model was presented in 2018 as the successor to the BMW F 700 GS. The BMW F 750 GS and the sister model BMW F 850 ??GS are the youngest representatives of the BMW F-GS series. The F-series started in 1993 with the BMW F 650, produced together with Aprilia, with a single-cylinder four-stroke engine from Rotax with a displacement of 652 cm³. The BMW F 650 GS followed with the same Rotax engine between 2000 and 2007, but with injection instead of carburetor. Between 2008 and 2012, the F 650 GS was equipped with the Rotax parallel twin twin cylinder with a displacement of 798 cm³, which has been used in a similar form in the BMW F 800 S and ST since 2006, and from 2008 also in the BMW F 800 GS enduro was used. This was followed in 2012 by the reduced-power sister model BMW F 700 GS with the same parallel twin engine. The two F 750 GS and F 850 ??GS models, which have the same engine and are very similar in other details, have been produced since 2018. As usual at BMW, the prefix "F" stands for "Fun" or "Funduro" and the suffix GS for off-road and off-road. The F 750 GS has a water-cooled two-cylinder four-stroke engine with four rocker-actuated valves per cylinder, two overhead camshafts and dry sump lubrication. The cylinder bore of 84 mm and the piston stroke of 77 mm result in a displacement of 853 cm³. The maximum speed is 9000 rpm. With a regulated 3-way catalytic converter, the engine meets the Euro 4 emissions standard. The predecessor models F 800 GS and F 700 GS were equipped with a 798 cm³ two-cylinder in-line twin engine with a 360 ° ignition offset, i.e. synchronous pistons. In the F 850 ??GS and F 750 GS models produced since 2018, it is now an 853 cm³ two-cylinder in-line twin with a 90 degree crank pin offset and an ignition offset of 270 degrees. This engine has balancer shafts. Due to this design and firing order, the engine behaves similarly to a V2 engine. In contrast to the more powerful sister model F 850 ??GS with 70 kW (95 PS), the performance of the F 750 GS is limited to 57 kW (77 PS) due to a modified engine control. The engine was designed by BMW, but is manufactured by BMW's cooperation partner Loncin in China [4]. The motorcycle can also be delivered with a reduced output of 35 kW (48 hp) for the A2 motorcycle license. Instead of a space frame like the previous model, the F 750 GS has a bridge frame with steel profiles in shell construction, which offers a higher torsional rigidity. The tank is also not installed under the seat, but above the engine.  The engine, transmission, frame and many other parts of the two sister machines are completely the same, the spare part numbers are often identical. The main differences are that the F 750 GS is designed a little more on the road and the F 850 ??GS more on terrain. The power and torque diagrams of both machines show that the F 850 ??GS only has a higher torque and therefore more power at high speeds from around 6000 rpm. The rear wheel is the same on both machines with 4.25 x 17 ". The larger seat height of the F 850 ??GS results above all from the 21" larger front wheel and the larger suspension travel at the front and rear. The sitting position with the feet on the footrests is almost the same due to the identical frame of both machines.