Engineering:BMW R1250RS
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| Manufacturer | BMW |
|---|---|
| Production | 2018– |
| Predecessor | BMW R1200RS |
| 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 | 143 mph (230 km/h) |
| Power | 136 horsepower (101 kW) @ 7,750 rpm |
| Torque | 105 pound force-feet (142 N⋅m) @ 6,250 rpm |
| Transmission | 6-speed, shaft drive |
| Suspension | Front: 45mm inverted fork Rear: BMW Paralever Optional electronic adjustment |
| Brakes | Front:
Rear: |
| Tires | Front:
Rear:
|
| Wheelbase | 1,530 mm (60 in) |
| Dimensions | L: 2,207 mm (86.9 in) W: 925 mm (36.4 in) H: 1,255 mm (49.4 in) |
| Seat height | 820 mm (32 in)[1] |
| Weight | 243 kg (536 lb)[1] (wet) |
| Fuel capacity | 18 L (4.0 imp gal; 4.8 US gal) |
| Related | BMW R1250RT, BMW R1250R, BMW R1250GS |
The BMW R1250RS is a sport touring motorcycle produced by BMW Motorrad. It was unveiled at EICMA in November 2018.[2] Like the other versions of the R-series, which include the R1250RT, R1250R (Roadster) and R1250GS, the motorcycle model is powered by a boxer engine.
Specifications
Powertrain
The air- and water-cooled two-cylinder engine produces a nominal output of 100 kW (136 hp) at 7750 rpm and a maximum torque of 143 Nm at 6250 rpm from a displacement of 1254 cm³. It has a sliding camshaft (shiftcam) that adjusts the timing for the lower, middle and upper speed ranges and changes the valve lift.[2][3] Depending on the position, a partial load or full load cam acts on the valves. A regulated three-way catalytic converter treats the exhaust gas. The engine meets the Euro 5 emissions standard.[2] There is also engine drag torque control (MSR). Consumption in the WMTC cycle is given as 4.75 l/100 km (CO2 emissions are 110 g/km).[4] The magazine Motorrad und Reisen reports from around 3.9 to around 5.3 l/100 km.[1]
Design
The frame consists of a main frame and a rear frame bolted to it, with the engine also serving as a load-bearing element. The R1250RS has an upside-down telescopic fork at the front and a cast aluminum single-sided swingarm at the rear.[1] The chassis is complemented by traction control (Dynamic Traction Control, DTC) and Pro driving modes with driving mode preselection. On request, a semi-active chassis with automatic level control to adapt to the load condition is available.[5]
The R1250RS is equipped with two LED headlights[6] and a 6.5-inch TFT display. The eCall emergency call is available upon request, as are add-on parts milled from solid aluminum.[2] The 6-speed transmission can be equipped with shift support, also known as quickshifter or blipper.[5] The machine has an 18-liter tank (including 4 liter reserve).[4]
References
- ↑ 1.0 1.1 1.2 1.3 1.4 "Fahrtest: BMW R 1250 RS". motorradundreisen.de. 2019-07-19. https://www.motorradundreisen.de/motorraeder/fahrtest-bmw-r-1250-rs/3480. Retrieved 2022-06-15.
- ↑ 2.0 2.1 2.2 2.3 Uli Baumann (2019-01-31). "BMW R 1250 RS auf der EICMA: Sporttourer mit Schaltnockenboxer". motorradonline.de. https://www.motorradonline.de/tourer/bmw-r-1250-rs-auf-der-eicma-sporttourer-mit-schaltnockenboxer/. Retrieved 2022-06-15.
- ↑ "BMW R 1250 GS und R 1250 RT". tourenfahrer.de. 2018-09-18. https://www.tourenfahrer.de/nachrichten/artikel/neuer-bmw-boxermotor-mit-shiftcam-technologie/. Retrieved 2022-06-15.
- ↑ 4.0 4.1 "Daten & Ausstattung – R 1250 RS". bmw-motorrad.de. https://www.bmw-motorrad.de/de/models/sport/r1250rs/technicaldata.html#/section-technische-daten. Retrieved 2022-06-16.
- ↑ 5.0 5.1 Johannes Müller (2019-12-16). "BMW R 1250 RS gegen Kawasaki Z 1000 SX: Sporttourer im Vergleichstest". motorradonline.de. https://www.motorradonline.de/tourer/sporttourer-vergleichstest-bmw-r-1250-rs-kawasaki-z-1000-sx-2/. Retrieved 2022-06-15.
- ↑ "Touren-Test: BMW R 1250 RS". tourenfahrer.de. 2019-08-01. https://www.tourenfahrer.de/aktuelle-ausgabe/artikel/touren-test-bmw-r-1250-rs. Retrieved 2022-06-15.
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