Much has been said about the new R1300GS and its appearance, now the first photos of the new Boxer 1300 engine have also emerged.
Over the years we have witnessed a slow and continuous evolution of this historic power unit, relatively recent, in 2013 water cooling and from the dry single plate clutch there was a change to a wet multi-plate clutch.
Also recently, in 2018, the boxer was improved with the variable ignition system Shift Cam, further improving performance, despite increasingly restrictive regulations on pollutant emissions and noise.
The new Boxer 1300 continues this evolution, it is a completely new unit with a shorter stroke than the 1250 cc, despite the larger displacement and, above all, it no longer has the gearbox behind the cylinders, but at the bottom of the crankcase; a shorter and more compact engine (also due to the new positioning of the distribution system, still equipped with Shiftcam for variable distribution), more compact and with larger valves than the 1250, still air/liquid cooled, but lighter by 3.9 kg in the base engine and 6.5 kg in the entire power unit.
Never before has it been so powerful, 107 kW (145 hp) at 7,750 rpm with a maximum torque of 149 Nm at 6,500 rpm, but it is important to note that between 3,600 and 7,800 rpm the torque of over 130 Nm is constantly available.
The gearbox keeps six gears and changes position, no longer behind the engine, but underneath.
Now equipped with a signal transmitter sensor for the optional Shift Assistant Pro, based on a new concept involving a twist magnet.
It seems that the Boxer 1300 no longer has a separate compensation shaft, instead, the counterweights are positioned on the crankshaft and alternator.
