Data sheet
Dimensions & weights
- Wet weight
- 229 kg
- Seat height
- 815 / 890 mm
- Ground clearance
- 126 mm
- Wheelbase
- 1593 mm
- Suspension travel
- 204 / 219 mm
- Payload capacity
- 216 kg
Engine & drivetrain
- Engine
- 853 cc · Parallel twin
- Cooling
- Liquid cooled
- Output
- 90 hp · 92 Nm
- Transmission
- 6-speed
- Final drive
- Chain
- Fuelling
- Electronic fuel injection
Fuel & range
- Fuel capacity
- 15 L
- Real world range
- 320 km
Electronics & rider aids
- Ride modes
- Rain/Road/Dynamic/Enduro
- Cruise control
- Yes
- Traction control
- Yes · defeatable
- ABS
- Yes · fully defeatable
- Heated grips
- No
- Heated seat
- No
Service intervals
- Service interval
- 10,000 km
- Valve check
- 20,000 km
- Chain lube
- every 1,000 km
Protection
- Bash plate
- None
- Radiator guard
- No
- Oil cooler guard
- No
- Hand guards
- No
Consumables & service specs
Every value carries its source.
Tyres
- Front
- 90/90-21BMW USA F850GS Tech Data · official
- Rear
- 150/70-17BMW USA F850GS Tech Data · official
Tyre pressures
- Front — solo
- 2.2 barCold tyre, solo riderBMW F850GS Rider's Manual 2019 · official
- Rear — solo
- 2.5 barCold tyre, solo riderBMW F850GS Rider's Manual 2019 · official
- Front — loaded
- 2.5 barCold tyre, with passenger and/or loadBMW F850GS Rider's Manual 2019 · official
- Rear — loaded
- 2.9 barCold tyre, with passenger and/or loadBMW F850GS Rider's Manual 2019 · official
Engine oil
- Viscosity
- SAE 5W-40BMW F850GS Rider's Manual 2019 · official
- Capacity
- 3.0 lApproximate total filling quantity with filter changeBMW F850GS Rider's Manual 2019 · official
Brakes
- Fluid type
- DOT 4BMW F850GS Rider's Manual 2019 · official
Final drive
- Chain
- 17/44 (sprocket/chain ring teeth), endless O-ring chainBMW F850GS Rider's Manual 2019 · official
Spark plugs
- Type
- NGK LMAR8J-9EBMW F850GS Rider's Manual 2019 · official
- Quantity
- 2Parallel-twin engine, one plug per cylinderBMW F850GS Rider's Manual 2019 · official
Battery
- Type
- AGM (Absorbent Glass Mat), maintenance-free, 12V/10AhBMW F850GS Rider's Manual 2019 · official
Fuel
- Minimum octane
- 87 AKI / 91 RON (regular unleaded)BMW F850GS Rider's Manual 2019 · official
- Ethanol tolerance
- Up to E15 (max. 15% ethanol)BMW F850GS Rider's Manual 2019 · official
What breaks first and where.
Engine connecting rod loosening / oil supply defect (recall)
CatastrophicRareNHTSA campaign 18V830 for engine connecting rods that may loosen on the F850GS's China-built (Loncin) parallel-twin engine, which can damage the engine and cause loss of power, increasing crash risk. A related broader recall affecting a larger number of units for an oil supply/oil pump defect on the same engine was also issued in EU markets.
Symptoms
- Loss of engine power
- Engine noise indicating internal mechanical looseness
- Potential sudden engine failure
Field repairableNo — Dealer inspection/replacement of affected engine internals under recall; not a rider field repair.
Brake lights flash during braking (recall, FMVSS 108 non-compliance)
ModerateOccasionalNHTSA campaign 20V146 affecting approximately 4,026 units for model years 2019-2020: brake lights flash during braking rather than illuminating steadily, which can confuse following drivers and increase crash risk.
Symptoms
- Brake light flashes/pulses instead of staying steadily illuminated under braking
Field repairableNo — Dealer software/hardware correction under recall.
Oil pump / oil pressure failure
SeriousOccasionalReports of the gear-driven oil pump on the F850GS's parallel-twin engine failing or breaking, resulting in a loss of oil pressure and risk of subsequent engine damage if not caught early.
Symptoms
- Low or zero oil pressure warning light
- Unusual engine noise from oil starvation
Field repairableNo — Requires dealer/qualified mechanic diagnosis and oil pump replacement.
Cam chain tensioner failure risk (interference engine)
CatastrophicOccasionalThe F850GS parallel-twin is an interference engine; documented cam chain tensioner failures can allow valve timing to slip, leading to valve-to-piston contact and bent valves if not caught early.
Symptoms
- Rattling noise from timing chain area
- Rough running or sudden loss of power if timing slips
- Bent valves on teardown in failed cases
Field repairableNo — Requires dealer/qualified mechanic inspection and tensioner/valve repair; not a rider-level field fix.
Air filter dirt ingestion requiring more frequent servicing off-road
MinorCommonWhen ridden off-road in dusty/dirty conditions, the F850GS air filter can accumulate dirt faster than the standard published service interval accounts for, requiring more frequent inspection/cleaning or replacement than the roughly 6,000-mile factory interval.
Symptoms
- Reduced performance/rough running if filter becomes heavily clogged
- Visible dirt/dust accumulation on filter element on inspection
Field repairableYes — Increase air filter inspection/cleaning frequency for off-road use beyond the standard factory interval.
Chain slap noise
MinorCommonSome owners report an audible chain slap noise from the final drive chain, generally considered a cosmetic/noise annoyance rather than a mechanical defect.
Symptoms
- Audible slapping/clicking noise from chain area, especially over bumps
Field repairableYes — Check and adjust chain tension/lubrication per service schedule; slap noise often reduced with proper chain slack adjustment.
Steering stem / head bearing loosening at break-in
ModerateCommonCommunity-documented (GitHub owner-maintained known-issues document) reports that the steering head/stem bearings can loosen during the initial break-in period and should be re-checked/re-torqued at the first service interval.
Symptoms
- Looseness or play felt in steering at the headstock
- Notchy or uneven steering feel
Field repairableYes — Inspect and re-torque steering head bearing preload at first/break-in service per documented community procedure.
RDC tire pressure monitor inaccuracy
MinorCommonOwners commonly report that the factory RDC (Reifendruck-Kontrolle) tire pressure monitoring system displays inaccurate readings, to the point that it is jokingly referred to in the owner community as 'Rarely Displays Correct.'
Symptoms
- Displayed tire pressure does not match actual measured pressure
- Inconsistent or erratic readings
Field repairableNo — No reliable field fix documented; owners recommend verifying pressure manually with a gauge rather than relying on the display.
Rear brake pedal position too low / hard to reach standing
ModerateCommonThe stock rear brake pedal position is commonly reported as too low, making it difficult to operate while standing on the pegs off-road. The community documentation explicitly warns against DIY repositioning of the pedal, noting that improper adjustment can risk brake lockup or brake line/hydraulic issues.
Symptoms
- Difficulty reaching/operating rear brake pedal while standing on footpegs
Field repairableNo — Community source explicitly cautions against unsupervised DIY brake pedal repositioning due to risk of brake lockup or hydraulic line damage; recommend qualified mechanic for any adjustment.
Clutch overheating in slow/technical riding
ModerateOccasionalCommunity documentation reports the clutch can overheat during prolonged slow-speed or technical riding (e.g. slow off-road sections, heavy traffic), consistent with a wet clutch operating for extended periods at high slip.
Symptoms
- Clutch feels different/slips after prolonged slow-speed riding
- Possible burning smell in extreme cases
Field repairableYes — Avoid prolonged clutch slipping at low speed; allow cool-down periods during extended slow technical sections.
Cooling system leaks
ModerateOccasionalReports of coolant leaks developing from the cooling system on the F850GS parallel-twin platform.
Symptoms
- Visible coolant leakage/puddling
- Coolant level warning light
- Overheating if unaddressed
Field repairableNo — Requires qualified mechanic diagnosis of leak source (hose, seal, radiator, or water pump).