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BMW presents R1250GS and R1250RT with variable valve timing

BMW has presented new versions of its most iconic models, the GS and RT, for 2019. Following increased engine capacity the models are now known as R1250 GS and R1250RT. The big news, however, isn’t displacement, rather than variable cam timing, which BMW calls ShiftCam.

 

 

Variable cam timing provides increased engine performance throughout the rev range as well as reduced emissions and better fuel consumption. BMW also say the already smooth engine has been further refined. BMW’s system varies the intake cam timing and stroke and enables the engine to open intake valves asynchronously, which optimises flow characteristic of the air/fuel mixture resulting in more efficient combustion.

 

 

Other technical changes include swapping the roller cam chain in favour of a toothed chain, optimised engine oil supply for better lubrication and cooling, twin jet injectors and a new exhaust system, which is said to produce an impressive sound.

Standard equipment includes two riding modes to change the nature of the bikes according to current circumstances. Further aiding the rider are Automatic Stability Control (ASC) and Hill Start Control.

 

 

As is typical with BMW, the options list is a long one. Riding Modes Pro, featuring the additional riding mode Dynamic and Dynamic Traction Control (DTC), and in the R 1250 GS also the riding modes Dynamic Pro, Enduro and Enduro Pro, is available as optional equipment.

DTC helps the rider accelerate in a safe and efficient manner, also with the bike tilted. ABS Pro (part of Riding Modes Pro in the R1250GS, a standard feature in the R1250RT) offers greater safety when braking, even when tilted.

As a new feature, BMW present Dynamic Brake Control (DBC). It is said to provide additional safety when braking, by avoiding unintentional accelerator activation. This is achieved by an override in the engine management reducing drive torque in order to make full use of the braking power at the rear wheel.

 

 

GS riders have already been treated with BMW’s take on semi-active suspension, the Dynamic ESA. Now the “Next Generation” Dynamic ESA is available also for the RT as an option. It allows fine-tuned adaptation to the riding conditions providing a balance between comfort and dynamic characteristics. The automatically adjusting suspension also compensated to load automatically.

 

BMW R 1250 GS and R 1250 RT in a nutshell:

  • Further developed boxer engine with BMW ShiftCam Technology for variation of the valve timings and valve stroke on the intake side.
  • Increased power across the entire rev range, optimised fuel consumption and emission levels, increased running smoothness and refinement.
  • Increased output and torque: 100 kW (136 hp) at 7 750 rpm and 143 Nm at 6 250 rpm (previously: 92 kW (125 hp) at 7 750 rpm and 125 Nm at 6 500 rpm)).
  • Capacity increased to 1 254 cm3 (previously: 1 170 cm3).
  • Asynchronous valve opening on the intake side for optimised swirl and more effective combustion.
  • Camshaft drive now via toothed chain (previously roller chain).
  • Optimised oil supply and piston base cooling.
  • Knock sensor system for optimised travel suitability.
  • Latest generation of BMS-O engine control and use of twin-jet injection valves for even more effective carburetion.
  • New exhaust system for optimum performance characteristics.
  • New additional front spoiler on the R 1250 RT.
  • Two riding modes, ASC and Hill Start Control as standard.
  • Riding Modes Pro, featuring additional riding modes, Dynamic Traction Control DTC, ABS Pro (standard in the R 1250 RT), Hill Start Control Pro and Dynamic Brake Assistant DBC, available as an optional equipment item ex works.
  • Electronic suspension Dynamic ESA “Next Generation” with fully automatic load compensation.
    In addition to standard adjustability of seat height (exception: HP style for the R 1250 GS), wide range of seat height variants ex works.
  • LED headlamp for the R 1250 GS as standard and LED daytime riding light for both models as optional equipment items ex works.
  • Connectivity: multifunctional instrument cluster with 6.5-inch full-colour TFT screen and numerous features as standard in the R 1250 GS.
  • Intelligent Emergency Call as an ex works option.
  • BMW Motorrad Spezial – customisation features as optional equipment items ex works.
  • Extended range of optional equipment items and Original BMW Motorrad Accessories.
  • The new R 1250 GS: travel and off-road prowess in two modern basic finishes and two striking style variants.
  • The new R 1250 RT: exclusive touring character in one basic colour, two style variants and Option 719 Spezial finishes.
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