The new BMW F 700 GS and BMW F 800 GS Drivetrain
Like their predecessor models, the F 700 GS and F 800 GS also draw their power from the dynamic, high-torque water-cooled 2-cylinder in-line engine with 798 cc capacity, fuel injection and closed-loop catalytic converter.
The parallel twin has not been changed as compared to the predecessor models. Its technical highlights remain a very compact construction with cylinders tilted just 8.3 degrees forward, two overhead camshafts with speed-resistant valve control via rocker arms and the unique mass balance by means of a system of articulated joints running over the centre of the crankshaft with specifically arranged counterbalance masses to ensure low-vibration running.
Optimised power and torque efficiency and a shorter overall gear ratio in the new F 700 GS.
The agile power delivery and revving power of the F 700 GS and F 800 GS are especially thrilling: even in the lower and medium engine speed range,
the two new GS models offer a powerful response for dynamic riding
fun - whether on or off the road.
While the output and torque of the F 800 GS remain unchanged at 63 kW at 7,500 rpm and 83 Nm at 5,750 rpm, the new F 700 GS benefits from an increase in output and torque as compared to its predecessor model. The output has been raised by 4 hp to 55 kW at 7,300 rpm (F 650 GS: 52 kW at 7,000 rpm), and the maximum torque has been increased to 77 Nm at 5,500 rpm (F 650 GS: 75 Nm at 4,500 rpm).
This increase in power now requires the use of premium fuel (RON 95) in the F 700 GS too, but both models can also run on regular fuel (RON 91) by means of an optional adaptation of the engine map. For people aged up to 25 taking their motorcycle test (in line with the EU-wide increase in the output limit relevant to those taking a motorcycle licence as of 01.01.2013), the F 700 GS and F 800 GS are also available in reduced power versions with an output of 35 kW at 7,000 rpm and a torque of 60 Nm at 5,000 rpm.
The same claw coupled six-speed gearbox has been used as in the predecessor models. In order to enhance spontaneity, liveliness and riding dynamics, the secondary ratio of the chain drive with off-road capability in the new F 700 GS is now somewhat shorter with 17 to 42 teeth (F 650 GS: 17 to 41 teeth).