BMW R1200RT Engine Configuration, Displacement, Engine Oil

BMW R1200RT is an air/oil-cooled flat-twin boxer engine with an engine displacement of 1,170 cc, dual overhead camshafts, and 4 valves per cylinder.

R1200RT’s engine has a 101 mm Bore and 73 mm Stroke. The engine produces 109 horsepower at 7,750 rpm, and 89 lb-ft torque at 6,000 rpm.

R1200RT has a 6-speed manual transmission with a shaft final drive. The motorcycle is capable of reaching 0-60 mph in 4.3 seconds.

BMW R1200RT needs 4 liters (4 quarts + 7 oz) of 10W-40 full synthetic oil during an oil change. A closed-loop catalytic converter controls the emissions of the engine.

BMW R1200RT Engine icon
1170 CC Four-Stroke
Two-Cylinder Boxer Engine
BMW R1200RT Transmission
Transmission
6-Speed
BMW R1200RT Engine Oil
4 Liters
10W-40 Synthetic Oil
BMW R1200RT Engine Piston
Two Overhead Camshafts &
4 Valves per Cylinder

BMW R1200RT Engine Configuration

The BMW R1200RT has an air/oil-cooled, four-stroke two-cylinder boxer engine.

The engine has two overhead camshafts per cylinder (single before 2010) and four valves per cylinder.

The Central Balance Shaft enhances the engine’s stability.

BMW R1200RT Engine Displacement

BMW R1200RT has an engine displacement of 1,170 cc (71 cu in). It is a flat-twin engine with a 101 mm Bore and 73 mm Stroke.

This air/oil-cooled boxer engine utilizes dual overhead cams, four valves per cylinder, and a compression ratio of 12:0:1 to produce 81 kW (109 hp) of peak power output at 7,750 rpm along with 120 Nm (89 lb-ft) of max torque at 6,000 rpm.

Complemented by its 6-speed sequential manual gearbox and shaft final drive, the powertrain enables the 505 lb motorcycle to reach a top speed of 135 mph and accelerate from 0-60 mph in just 4.3 seconds per independent testing.

Engine TypeTwin Cylinder, Four-Stroke, DOHC
Displacement1170 cc
Max Torque125 Nm @ 6500 rpm
No. of Cylinders2
Cooling SystemAir and Liquid Cooled
Valve Per Cylinder4
StartingSelf Start Only
Fuel SupplyFuel Injection
ClutchWet clutch with an anti-hopping function, hydraulic activation
Gear Box6 Speed
Bore101 mm
Stroke73 mm
Compression Ratio12.5:1
Engine Oil Capacity4 Liters
Horsepower109 horsepower (81 kW) at 7,750 rpm

BMW R1200RT Engine Oil

1st and 2nd gen R1200RT use the Hiflofiltro HF148 Oil Filter, while the 3rd gen from 2013 onwards employs the Hiflofiltro HF204RC filter.

The recommended engine oil options for the 1st and 2nd gen models (pre-2013) are Yamalube 20W-40 or 20W-50.

BMW suggests using Yamalube 10W-40 or Yamalube 10W-50 for 3rd gen (2013+).

Earlier manuals recommended 20W-40, but according to the recent manuals, 10W-40 synthetic is suitable for all motors.

BMW R1200RT Engine Oil Capacity

BMW R1200RT needs 4 liters/4 quarts and 7 ounces of 10W-40 engine oil when the engine oil and filter are replaced.

BMW R1200RT Horsepower and Torque

BMW R1200RT engine produces 109 horsepower (81 kW) at 7,750 rpm and 120 Newton-meters (89 lb-ft) of torque at 6,000 rpm.

BMW R1200RT has a three-phase alternator generating 720 W and a single dry plate clutch.

Its acceleration is remarkable, reaching a top speed of 135 mph and completing a standing quarter mile in just 12.2 seconds.

BMW R1200RT Engine – Liquid Cooled vs Air Cooled

The liquid-cooled engine is more powerful with strong low-end and top-end power, although it is noisy at idle. Acceleration is greatly improved over the Air-Cooled Twin Cylinder.

The LC engine remains smooth at high speeds up to 110 mph, ideal for autobahn touring. However, vibration control is still lacking compared to some rivals.

The LC’s gearbox feels rough, especially when shifting into 1st from a stop. The clutch is lighter but noisy. The optional quick-shifter works well for upshifts only.

Suspension, ergonomics, and rider comfort see useful improvements on the LC over the TC. The Dynamic ESA system offers very noticeable differences between modes.

The central display on the LC is flashy with lots of customizable info but more button presses are needed compared to the TC’s simpler interface to access key data while riding.

BMW R1200RT Valvetrain

Recommended valve lash clearance settings for BMW R1200RT are 0.15mm for intake and 0.35mm for exhaust.

The RT-P police model uses a larger exhaust clearance for better heat dissipation during extended idling

The 2005 to 2013 models have a lightened valve train and redesigned cylinder heads with larger valves.

2014 to 2017 models of the BMW R1200RT have a timing chain/camshaft system.

BMW R1200RT Engine Specifications

BMW R1200RT Transmission

The BMW R1200RT utilizes a constant-mesh 6-speed sequential manual transmission with helical gearing for smooth, precise shifting.

It features a shaft final drive rather than a chain or belt.

Power is transmitted through a single dry clutch on earlier models, later upgraded to a multi-plate wet clutch on 2014 and newer water-cooled R1200 engines.

Combined with precise helical gears, the shaft drive delivers outstanding reliability over hundreds of thousands of miles.

BMW R1200RT Engine Reliability

BMW R1200RT engine has a lifespan of 15-20 years with proper maintenance.

BMW R1200RT can easily reach 100,000 miles or more before requiring major engine work.

The horizontally opposed twin-cylinder engine, derived from BMW’s durable oil head and hex head designs is the reason for the engine’s reliability.

Comparison with other models

While the BMW R1200RT showcases a boxer engine with air/oil cooling and a focus on reliability, the Yamaha FJR1300 stands out with its high-powered inline four-cylinder engine, emphasizing efficiency and performance.

On the other hand, the Honda ST1300’s V4 engine prioritizes a balance between torque and horsepower, offering a smooth and dependable ride.

BMW R1200RT Engine Maintenance Tips

Change the engine oil and filter religiously at the intervals specified in your owner’s manual.

Using the correct oil weight and quality keeps engine internals properly lubricated.

Inspect the valve clearances as part of the periodic maintenance schedule.

Valves can get out of adjustment over miles of use, affecting performance.

Clean the air filter element at the recommended intervals to protect your BMW’s sensitive fuel injection system.

Check the drive belt tension on schedule as outlined in the motorcycle’s maintenance checklist. Keeping proper belt tension prevents slippage and uneven wear.

Flush the coolant system every 2 years to clear out accumulated dirt and deposits. This maintains proper coolant flow and heat transfer.

BMW R1200RT Emissions Control

Emission control is a priority with a closed-loop three-way catalytic converter, underscoring BMW’s commitment to environmental standards.

The BMW engine management system, BMS-K with overrun fuel cut-off, and dual ignition works seamlessly to deliver precision and responsiveness.

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