BMW R1250RS

BMW R1250RS
ManufacturerBMW
Production2018–
PredecessorBMW R1200RS
Engine1,254 cc (76.5 cu in) liquid cooled boxer twin with variable valve timing (VVT)
Bore / stroke102.5 mm × 76 mm (4.04 in × 2.99 in)
Compression ratio12.5:1
Top speed143 mph (230 km/h)
Power136 horsepower (101 kW) @ 7,750 rpm
Torque105 pound force-feet (142 N⋅m) @ 6,250 rpm
Transmission6-speed, shaft drive
SuspensionFront: 45mm inverted fork
Rear: BMW Paralever
Optional electronic adjustment
BrakesFront:
  • Twin floating 320 mm discs, 4-piston radial calipers

Rear:

  • Single 276 mm disc, double piston floating caliper ABS[1]
TiresFront:
  • 120/70 R 17

Rear:

  • 180/55 R 17 (LC)Spoked or alloy, tubeless wheels
Wheelbase1,530 mm (60 in)
DimensionsL: 2,207 mm (86.9 in)
W: 925 mm (36.4 in)
H: 1,255 mm (49.4 in)
Seat height820 mm (32 in)[1]
Weight243 kg (536 lb)[1] (wet)
Fuel capacity18 L (4.0 imp gal; 4.8 US gal)
RelatedBMW R1250RT, BMW R1250R, BMW R1250GS

The BMW R1250RS is a sport touring motorcycle (Reise Sport) 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 intake 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. ^ a b c d e "Fahrtest: BMW R 1250 RS". motorradundreisen.de. 2019-07-19. Retrieved 2022-06-15.
  2. ^ a b c d Uli Baumann (2019-01-31). "BMW R 1250 RS auf der EICMA: Sporttourer mit Schaltnockenboxer". motorradonline.de. Retrieved 2022-06-15.
  3. ^ "BMW R 1250 GS und R 1250 RT". tourenfahrer.de. 2018-09-18. Retrieved 2022-06-15.
  4. ^ a b "Daten & Ausstattung – R 1250 RS". bmw-motorrad.de. Retrieved 2022-06-16.
  5. ^ a b Johannes Müller (2019-12-16). "BMW R 1250 RS gegen Kawasaki Z 1000 SX: Sporttourer im Vergleichstest". motorradonline.de. Retrieved 2022-06-15.
  6. ^ "Touren-Test: BMW R 1250 RS". tourenfahrer.de. 2019-08-01. Retrieved 2022-06-15.
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