R18 Big Sister - 2026 Specifications and Reviews
I don't have reliable information about a 2026 BMW R18 Big Sister model in my training data. BMW's R18 lineup has evolved, but I cannot confirm the specifications or characteristics of a 2026 "Big Sister" variant without risking inaccuracy. I'd recommend checking BMW's official website or current motorcycle databases for accurate, up-to-date information about this specific model.
2026
General information | |
| Color Options | Black Storm Metallic, Blackstrorm Metallic/Blacked Out, Gray Metallic/Blacked Out, Mineral Gray Metallic Matte/Blacked Out, Option 719 Olivin |
| Price | US$ 15395. MSRP depends on country, taxes, accessories, etc. |
| Category | Custom / cruiser |
| Model | BMW R 18 |
| | |
Engine and Transmission Specifications | |
| Starting | Electric |
| Emission Details | Regulated three-way catalytic converter |
| Emission | 49.2 CO2 g/km. (CO2 - Carbon dioxide emission) |
| Fuel Consumption | 2.12 litres/100 km (47.2 km/l or 110.95 mpg) |
| Clutch | Single-disc dry |
| Final Drive | Shaft drive (cardan) (final drive) |
| Gearbox | 6-speed |
| Cooling System | Oil & air |
| Ignition | Electronic intake pipe fuel injection, BMS-K+ electronic engine management with overrun cut-off and twin-spark ignition. |
| Fuel Control | Double Overhead Cams/Twin Cam (DOHC) |
| Induction | Injection. Electronic intake pipe fuel injection |
| Valves Per Cylinder | 4 |
| Bore x Stroke | 107.1 x 100.0 mm (4.2 x 3.9 inches) |
| Compression Ratio | 9.6:1 |
| Max Torque | 162.7 Nm (16.6 kgf-m or 120.0 ft.lbs) @ 3000 RPM |
| Max Power | 91.0 HP (66.4 kW)) @ 4750 RPM |
| Engine Details | Two chain-driven camshafts above the drive shaft. |
| Capacity | 1802.0 ccm (109.96 cubic inches) |
Physical measures and capacities | |
| Fuel Capacity | 16.01 litres (4.23 US gallons) |
| Wheelbase | 1730 mm (68.1 inches) |
| Overall Width | 947 mm (37.3 inches) |
| Overall Length | 2441 mm (96.1 inches) |
| Overall Height | 1125 mm (44.3 inches) |
| Seat Height | 719 mm (28.3 inches) If adjustable, lowest setting. |
| Wet Weight | 345.0 kg (760.5 pounds) |
| | |
R18 Big Sister dimensions and frame | |
| Wheels | Wire spoked |
| Rear Brakes | Single disc. 4 piston fixed calipers. ABS. |
| Brake Disc Diameter | 300 mm (11.8 inches) |
| Front Brakes | Double disc. 4 piston fixed calipers. ABS. |
| Rear Tyre | 180/65-B18 |
| Front Tyre | 120/70-R19 |
| Rear Wheel Travel | 89 mm (3.5 inches) |
| Rear Suspension | Steel swingarm with central shock strut |
| Front Wheel Travel | 119 mm (4.7 inches) |
| Front Suspension | Telescopic fork |
| Trail | 150 mm (5.9 inches) |
| Frame | Double-cradle steel |
Speed and acceleration | |
| Top Speed | 178.6 km/h (111.0 mph) |
Other specs | |
| Related bikes | List related bikes for comparison of specs. |
| Ask questions | Join the 25 BMW R 18 discussion group or the general BMW discussion group. |
| Maintenance | Find parts, fluids. filters, maintenance tools and service manuals at Amazon.com. |
| Insurance costs | Compare US insurance quotes from the nation's top providers. |
| Update specs | Report missing specs or required updates. |
| Comments | 3 riding modes. Automatic Stability Control. Keyless. |
| Warranty | 3-years or 36,000 miles warranty |
| Lighting | LED headlight |
| Electrical | Permanent magnet generator 600 W. 12 V / 26 Ah, maintenance-free battery |
| Reserve fuel capacity | 3.79 litres (1.00 US gallons) |
| Engine type | Two cylinder boxer, four-stroke |
| Model year | 2025 |
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