Engineering:BMW R1250GS
 Model year 2019 R1250GS | |
| Manufacturer | BMW |
|---|---|
| Production | 2019–2023 |
| Predecessor | BMW R1200GS |
| Successor | BMW R1300GS |
| Class | Adventure touring |
| Engine | 1,254 cc (76.5 cu in) liquid cooled boxer twin with variable valve timing (VVT) |
| Bore / stroke | 102.5 mm × 76 mm (4.04 in × 2.99 in) |
| Compression ratio | 12.5:1 |
| Top speed | 130.8 mph (210.5 km/h) |
| Power | 134 horsepower (100 kW) @ 7,750 rpm |
| Torque | 105.5 pound force-feet (143.0 N⋅m) @ 6,250 rpm |
| Transmission | 6-speed, shaft drive |
| Suspension | Front: BMW Telelever Rear: BMW Paralever Optional electronic adjustment |
| Brakes | Front:
Rear:
|
| Tires | Front:
Rear:
|
| Wheelbase | 1,500 mm (59 in) 1,520 mm (60 in) |
| Dimensions | L: 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 height | 850–870 mm (33–34 in) |
| Weight | 249 kg (549 lb) 268 kg (591 lb) (Adv) (wet) |
| Fuel capacity | 20 L (4.4 imp gal; 5.3 US gal) |
| Related | BMW R1250RT, BMW R1250R, BMW R1250RS |
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 four valves per cylinder and variable valve timing (VVT).
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 kg (549 lb).[4]
Engine
The engine displaces 1,254 cc (76.5 cu in) with 102.5 mm (4.04 inches) mm bore × 76 mm (3.0 inches) stroke. The intake camshafts have 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 hp (100 kW) at 7,750 rpm and 105.5 lb⋅ft (143.0 N⋅m) at 6,250 rpm, with 4% better fuel economy.[5]
References
- ↑ 1.0 1.1 Kevin Cameron (September 14, 2018), "BMW Adopts Variable Valve Timing On 2019 R1250GS Adventure Bike", Cycle World, https://www.cycleworld.com/bmw-adopts-variable-valve-timing-on-2019-r1250gs-adventure-bike
- ↑ Jensen Beeler (September 13, 2018), "Here Is the BMW R1250GS with "Shiftcam" Engine Technology", Asphalt & Rubber, https://www.asphaltandrubber.com/bikes/2019-bmw-r1250gs-shiftcam-variable-valves-vvt/
- ↑ Dennis Chung (September 17, 2018), 2019 BMW R1250GS And R1250RT With ShiftCam VVT Announced, Motorcycle.com, https://www.motorcycle.com/mini-features/2019-bmw-r1250gs-r1250rt-shiftcam-vvt-announced.html
- ↑ "BMW release full details of 2019 R1250GS", Motor Cycle News, September 17, 2018, https://www.motorcyclenews.com/news/new-bikes/2019-bmw-r1250gs/
- ↑ 5.0 5.1 2019 BMW R1250GS And R1250RT With ShiftCam VVT Announced, Motorcycle.com, September 17, 2018, http://www.motorcycle.com/mini-features/2019-bmw-r1250gs-r1250rt-shiftcam-vvt-announced.html
External links
 |  |
