BMW R1250GS

The BMW R1250GS is a motorcycle manufactured in Berlin, Germany by BMW Motorrad, part of the BMW group. It is one of the BMW GS family of dual sport motorcycles. It has a 1,254 cc (76.5 cu in), two-cylinder boxer engine with 4-valves per cylinder and variable valve timing (VVT).

BMW R1250GS
Model year 2019 R1250GS
ManufacturerBMW Motorrad
Production2019–
PredecessorBMW R1200GS
Engine1,254 cc (76.5 cu in) liquid cooled boxer twin with variable valve timing (VVT)
Bore / stroke102 mm × 76 mm (4.0 in × 3.0 in)
Compression ratio12.5:1
Top speed130.8 mph (210.5 km/h)
Power134 horsepower (100 kW) @ 7,750 rpm
Torque105.5 pound force-feet (143.0 N⋅m) @ 6,250 rpm
Transmission6-speed, shaft drive
SuspensionFront: BMW Telelever
Rear: BMW Paralever
Optional electronic adjustment
BrakesFront:
  • Twin floating 305 mm discs, 4-piston radial calipers

Rear:

  • Single 276 mm disc, double piston floating caliper ABS
TiresFront:
  • 120/70 R 19

Rear:

  • 170/60 R 17 (LC)Spoked or alloy, tubeless wheels
Wheelbase1,500 mm (59 in)
1,520 mm (60 in)
DimensionsL: 2,207 mm (86.9 in)
2,270 mm (89 in) (Adv)
W: 895 mm (35.2 in)
980 mm (39 in) (Adv)
H:
1,450 mm (57 in)
Seat height850–870 mm (33–34 in)
Weight249 kg (549 lb)
268 kg (591 lb) (Adv) (wet)
Fuel capacity20 L (4.4 imp gal; 5.3 US gal)

History

In September 2018, Kevin Cameron wrote that a "shift cam" VVT system was destined for a 2019 model year R1250GS, and other media reported the technology was to be adopted on all the R series boxer motors.[1][2] In September 2018, BMW confirmed the 2019 R1250GS and sibling R1250RT would have VVT.[3]

Chassis

Wet weight is up from the predecessor to 249 kilograms (549 lb).[4]

Engine

The engine displaces 1,254 cc (76.5 cu in) with 102.5 mm bore × 76 mm stroke. There are two cam lobes per valve that can be switched within one cam revolution between partial-throttle and open-throttle cam profiles.[1][5] Power and torque claimed by BMW are higher than the predecessor model at 134 horsepower (100 kW) at 7750 rpm and 105.5 pound force-feet (143.0 N⋅m) at 6250 rpm, with 4% better fuel economy.[5]

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References
  1. Kevin Cameron (September 14, 2018), "BMW Adopts Variable Valve Timing On 2019 R1250GS Adventure Bike", Cycle World
  2. Jensen Beeler (September 13, 2018), "Here Is the BMW R1250GS with "Shiftcam" Engine Technology", Asphalt & Rubber
  3. Dennis Chung (September 17, 2018), 2019 BMW R1250GS And R1250RT With ShiftCam VVT Announced, Motorcycle.com
  4. "BMW release full details of 2019 R1250GS", Motor Cycle News, September 17, 2018
  5. 2019 BMW R1250GS And R1250RT With ShiftCam VVT Announced, Motorcycle.com, September 17, 2018
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