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]R 1250 GS · 2019–2023
BMW R 1250 GS Adventure · 136 hp (2019 to 2023)
The BMW R 1250 GS Adventure uses the BMW Boxer 1254 petrol engine with 136 hp.
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Technical specifications
- Fuel
- Petrol
- Power
- 136 PS / 100 kW
- Displacement
- 1 254 cm³
- Cylinders
- 2
- Engine code
- BMW Boxer 1254
- Period covered
- 2019–2023
- 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
136 hp (100 kW), shaft final drive, 6-speed manual. Built from 2019 to 2023.
AutoKarnet advice
In the range
It is the most powerful petrol version of this generation. The BMW Boxer 1254 engine is also fitted to: BMW R 1250 RT (R 1250 RT).
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 1250 GS pages, the Standard 136 hp offers a comparison: 136 hp (100 kW), BMW Boxer 1254, 1 254 cm³, 6-speed manual, 2019–2023. The version on this page has 136 hp (100 kW), BMW Boxer 1254, 1 254 cm³, 6-speed manual, 2019–2023. 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.
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 20,000 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]Coolant
Every 3 years
Replace the coolant and check the hoses and radiator; check the level cold between services.
Source [1]Questions about this version (3)
Which engine is in the BMW R 1250 GS Adventure?
The BMW Boxer 1254 petrol engine (1 254 cc), 136 hp (100 kW).
AutoKarnet advice
Which oil for the BMW R 1250 GS Adventure?
A JASO MA2 10W-40 four-stroke motorcycle oil suited to the BMW Boxer 1254 engine.
AutoKarnet advice
How do I check this page matches my car?
This page covers BMW R 1250 GS Adventure 136 hp, adventure bike, 2019–2023, with 136 hp (100 kW), BMW Boxer 1254, 1 254 cm³, 6-speed manual, 2019–2023. Compare these details with the registration document and gearbox identification. The designation BMW Boxer 1254 may cover several revisions: a VIN is still needed to confirm part numbers.
AutoKarnet advice
Documentary sources
- [1] Rédaction AutoKarnet
AutoKarnet · FR · Europe · Synthèse éditoriale AutoKarnet · Accessed 09/10/2026