2018 BMW G 310GS vs 2019 Yamaha YZ250X

Full specifications comparison • 2 motorcycles

Comparing 2 motorcycles
2018 BMW G 310GS 2018 BMW G 310GS

Enduro / Off-Road

Engine
Single cylinder, four-stroke
Power
25 kW / 34 hp @ at 9500
Top Speed
88.9 mph
Weight
373.7 pounds
2019 Yamaha YZ250X 2019 Yamaha YZ250X

Enduro / Off-Road

Engine
Single cylinder, two-stroke
Power
N/A
Top Speed
N/A
Weight
229.0 pounds
Full Specifications
General
Year2018-
ColoursCosmic Black, Racing Red, Pearl White Metallic MotorsportTeam Yamaha Blue
Make ModelBMW G 310GS-
Warranty-30 Day Limited Factory Warranty
Dimensions
Ground Clearance (in.)-14.2 inches
Ground Clearance (mm)-361 mm
Seat Height835 mm / 32.9 in 820 mm / 32.2 in Low Seat 850 mm / 33.5 in Comfort Seat970 mm / 38.2 in.
Wheelbase1420 mm / 55.9 in1486 mm / 58.5 in.
Height1230 mm / 48.2 in (excl. mirrors)1290 mm / 50.8 in.
Length2075 mm / 81.7 in2184 mm / 86.0 in.
Width878 mm / 34.6 in (incl. mirrors)826 mm / 32.5 in.
Weights & Capacities
Fuel Capacity11 Litres / 2.9 US gal7.95 litres / 2.10 US gallons
Wet Weight175 kg / 385.8 lbs103.9 kg / 229.0 lbs
Performance
Top Speed143.0 km/h / 88.9 mph-
Max Power25 kW / 34 hp @ at 9500-
Max Torque28 Nm / 2.86 kgf-m / 20.7 ft-lb @ 7500 rpm-
Engine
Bore x Stroke (mm)-66.4 x 72.0 mm
Bore x Stroke (in,)-2.6 x 2.8 inches
Engine TypeSingle cylinder, four-strokeSingle cylinder, two-stroke
CO277.3 CO2 g/km. (CO2 - Carbon dioxide emission)-
Displacement (cc)-249.0 cc
Fuel ControlDouble Overhead Cams/Twin Cam (DOHC)-
Displacement (ci)-15.19 cubic inches
Displacement313 cc / 19.1 cu-in-
Engine DetailFour stroke, rRearward-canted single-cylinder, DOHC, 4 valvesReed-valve inducted
Fuel SystemInjection. Electronic fuel injection, BMS-E2.Injection. Keihin® PWK38S
Bore x Stroke80 x 62.1 mm-
Compression Ratio10.6:19.4:1
Cooling SystemLiquid cooled-
EmissionsEuro 4-
Engine LubricationWet sump-
ExhaustSingle, closed-loop 3-way catalytic converter-
Fuel Consumption3.33 litres/100 km (30.0 km/l or 70.64 mpg)-
Fuel InductionElectronic fuel injection, BMS-E2-
Fuel Reserve1.00 litres / 0.26 gallons-
IgnitionElectronicCDI
LubricationWet sump-
StarterElectricElectric
Valve System4-
EV Specifics
Battery Capacity12 V / 8 Ah, Maintenance free-
Drivetrain
ClutchMultiple-discs in oil bath, mechanically operatedWet multi-disc
Final DriveChainChain   (final drive)
Gearbox6-speed5-speed
Primary DriveEndless Z-ring chain, shock damping in rear wheel hubO-ring chain
Transmission / DriveSynchromesh 6-speed transmission, integrated in the motor housing-
Chassis
Frame TypeTubular steel frame with bolted rear frame-
Suspension - Front41mm Upside-down forkKYB® Speed-Sensitive System inverted fork; fully adjustable
Suspension - RearSolid die-cast aluminum swingarm, directly hinged monoshock, adjustable preloadKYB® single shock; fully adjustable
Rake26.7°27.7°
Steering Head Angle63.3°-
Trail98 mm / 3.86 in122 mm / 4.8 in.
Wheel Travel - Front180 mm / 7.1 in300 mm / 11.8 in.
Wheel Travel - Rear180 mm / 7.1 in315 mm / 12.4 in.
Electrical Systems
Alternator308 W-
Wheels & Brakes
Brakes - Front Diameter (mm)300 mm-
Brakes - Rear Diameter (mm)240 mm-
Brakes - Front Diameter (in.)11.8 inches-
Brakes - Rear Diameter (in.)9.4 inches-
Brakes - FrontSingle 300mm disc, 4-piston fixed caliper, radially boltedSingle disc. Hydraulic.
Brakes - RearSingle 240mm disc, single-piston floating caliperSingle disc. Hydraulic.
ABSBMW Motorrad ABS-
Rims-Dunlop® AT81F tyres
Tyres - Front110/80 - R1990/90-21
Tyres - Rear150/70 - R17-
Wheels - FrontCast aluminium, 5-spoke, 2.50 x 19-
Wheels - RearCast aluminium, 5-spoke, 4.0 x 17-

Verdict

Winner on specs

2018 BMW G 310GS

The 2018 BMW G 310GS edges out the 2019 Yamaha YZ250X thanks to its lower seat height, liquid cooling and standard ABS. Specifications are one part of the picture - dealer support, parts availability, and intended use all matter too.

Key Differences

2018 BMW G 310GS - Advantages

  • Lower seat height: 835 mm vs 970 mm - accessible to a wider range of rider heights.
  • Liquid cooling: Consistent engine temperature in stop-start traffic and hot climates.
  • Standard ABS: A meaningful safety advantage in emergency braking on wet or loose surfaces.

2019 Yamaha YZ250X - Advantages

  • More rear wheel travel: 315 mm vs 180 mm - absorbs bigger hits and rough terrain better.
  • More front wheel travel: 300 mm vs 180 mm - greater compliance over rough surfaces.

2018 BMW G 310GS vs 2019 Yamaha YZ250X - FAQs

What are the engine differences between the 2018 BMW G 310GS and 2019 Yamaha YZ250X?
The 2018 BMW G 310GS uses Single cylinder, four-stroke, while the 2019 Yamaha YZ250X is powered by Single cylinder, two-stroke. This is a fundamental difference - the 2018 BMW G 310GS is a four-stroke engine while the 2019 Yamaha YZ250X runs a two-stroke, resulting in very different power delivery, maintenance requirements, and riding character.
Which bike is better for shorter riders, the 2018 BMW G 310GS or the 2019 Yamaha YZ250X?
The 2018 BMW G 310GS has the lower seat at 835 mm, making it more accessible. The 2019 Yamaha YZ250X sits higher at 970 mm. A seat height below 800 mm suits most riders; above 820 mm shorter riders may need to tiptoe.
Does the 2018 BMW G 310GS or 2019 Yamaha YZ250X have ABS?
The 2018 BMW G 310GS is listed with ABS as standard. The 2019 Yamaha YZ250X does not list ABS. ABS provides a meaningful safety benefit in emergency braking on wet or loose surfaces.
Which should I buy, the 2018 BMW G 310GS or the 2019 Yamaha YZ250X?
Both are strong choices. The 2018 BMW G 310GS has the edge in lower seat height and liquid cooling, while the 2019 Yamaha YZ250X stands out for higher rear wheel travel and higher front wheel travel. Visit dealers, arrange test rides, and factor in local parts and service costs - these often matter as much as the spec sheet.