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R 1200 GS (K25) · 2006–2007

BMW R 1200 GS (K25) Adventure · 100 hp (2006 to 2007)

The BMW R 1200 GS (K25) Adventure uses the BMW Boxer 1170 Air petrol engine with 100 hp.

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Technical specifications

Fuel
Petrol
Power
100 PS / 74 kW
Displacement
1 170 cm³
Cylinders
2
Engine code
BMW Boxer 1170 Air
Period covered
2006–2007
Documented market
Europe

Transmission

  • Manual · 6 speeds

Figures apply to the cited configuration and market; equipment and transmissions may vary by production date.

Specification source : [1] AutoKarnet

This version

100 hp (74 kW), shaft final drive, 6-speed manual. Built from 2006 to 2007.

AutoKarnet advice

In the range

It is the entry-level petrol version of this generation. The BMW Boxer 1170 Air engine is also fitted to: BMW R 1200 RT (R 1200 RT (Air)), BMW R nineT (R nineT), BMW R nineT (R 12 nineT), BMW R 1200 R (R 1200 R (Air)).

AutoKarnet advice

Body style and inspection points

On a motorcycle, tyres, final drive and brakes matter as much as the oil change. Check the tyre manufacturing date, steering-head play and fork-tube seals; an oil film on a tube means a fork seal needs replacing. A notched steering bearing can be felt when braking at low speed.

AutoKarnet advice

Distinguishing similar versions

Among the R 1200 GS (K25) pages, the Adventure 105 hp offers a comparison: 105 hp (77 kW), BMW Boxer 1170 Air, 1 170 cm³, 6-speed manual, 2008–2009. The version on this page has 100 hp (74 kW), BMW Boxer 1170 Air, 1 170 cm³, 6-speed manual, 2006–2007. When requesting a quote, specify the output and gearbox; the marketing name alone does not identify the correct parts.

AutoKarnet advice

Maintenance and records

≈: estimated reference — the vehicle’s service indicator prevails.

Oil and filter change

≈ 10,000 km or 1 year

JASO MA or MA2 approved four-stroke motorcycle oil (JASO MB on scooters): an “energy conserving” car oil makes the wet clutch slip. Change it more often in city use or on track.

Source [1]

Brake fluid

Every 2 years

Replace the fluid in both circuits (and the hydraulic clutch if fitted), whatever the mileage; dark fluid has absorbed moisture.

Source [1]

Fork oil

≈ 30,000 km

Fork oil change and seal check; an oil film on the tubes means a seal needs replacing before it contaminates the brake caliper.

Source [1]

Shaft drive

≈ 20,000 km

At each service: final-drive seal tightness, rear-wheel play and final-drive oil level or change as listed in the bike’s service book.

Source [1]

Spark plugs

Every 20,000 km

Replace the full set; worn plugs raise consumption and cause misfires.

Source [1]

Air filter

Every 40,000 km

Replace more often in dusty conditions.

Source [1]

Valve clearance

Every 10,000 km

Check and adjust if needed, often together with the plugs; too little clearance burns the valves, too much makes the engine noisy.

Source [1]

Questions about this version (3)

Which engine is in the BMW R 1200 GS (K25) Adventure?

The BMW Boxer 1170 Air petrol engine (1 170 cc), 100 hp (74 kW).

AutoKarnet advice

Which oil for the BMW R 1200 GS Adventure?

A JASO MA2 10W-40 four-stroke motorcycle oil suited to the BMW Boxer 1170 Air engine.

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How do I check this page matches my car?

This page covers BMW R 1200 GS (K25) Adventure 100 hp, adventure bike, 2006–2007, with 100 hp (74 kW), BMW Boxer 1170 Air, 1 170 cm³, 6-speed manual, 2006–2007. Compare these details with the registration document and gearbox identification. The designation BMW Boxer 1170 Air may cover several revisions: a VIN is still needed to confirm part numbers.

AutoKarnet advice

Documentary sources

  1. [1] Rédaction AutoKarnet

    AutoKarnet · FR · Europe · Synthèse éditoriale AutoKarnet · Accessed 09/10/2026

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