2020 BMW G 310R vs 2025 Harley-Davidson Sportster S

Full specifications comparison • 2 motorcycles

Comparing 2 motorcycles
2020 BMW G 310R 2020 BMW G 310R

Sport

Engine
Single cylinder, four-stroke
Power
25 kW / 34 hp @ 9500 rpm
Top Speed
88.9 mph
Weight
158.5 kg / 349 lbs
2025 Harley-Davidson Sportster S 2025 Harley-Davidson Sportster S

Sport

Engine
Four stroke, 60° V-twin Revolution Max 1250, Chain-driven, DOHC, hydraulic self-adjusting lifters, intake & exhaust VVT, four valves per cylinder
Power
121 hp / 90 kW @ 7500 rpm
Top Speed
N/A
Weight
228 kg / 502 lbs
Full Specifications
General
Year20202025
ColoursHP Motorsport, Cosmic Black, Racing Red-
Make ModelBMW G 310RHarley Davidson Sportster S
Dimensions
Height (in.)42.5 inches-
Height (mm)1080 mm-
Length (in.)78.9 inches-
Length (mm)2005 mm-
Seat Height (in.)30.9 inches-
Seat Height (mm)785 mm-
Wheelbase (in.)54.3 inches-
Wheelbase (mm)1380 mm-
Width (in.)33.4 inches-
Width (mm)849 mm-
Seat Height785 mm / 30.9 in765 mm / 30.1 in
Wheelbase1374 mm / 54.1 in1520 mm / 59.8 in
Ground Clearance-90 mm / 3.5 in
Height1080 mm / 42.5 in.1085 mm / 42.7 in
Length1988 mm / 78.3 in2270 mm / 89.42 in
Seat Height (Laden)-734 mm / 28.9 in
Width896 mm / 35.3 in840 mm / 33.1 in
Weights & Capacities
Dry Weight (kg)158.5221
Fuel Capacity (gal.)2.91 US gallons-
Fuel Capacity (l)11.00 litres-
Wet Weight (kg)158.5 228
Dry Weight (lbs.)349.4 pounds-
Dry Weight158.5 kg / 349.4 lbs221 kg / 487 lbs
Fuel Capacity11 Litres / 2.9 US gal11.7 Litres / 3.1 US gal
Wet Weight158.5 kg / 349 lbs228 kg / 502 lbs
Performance
Top Speed (mph.)88.9 mph-
Top Speed (km/h)143.0 km/h-
Top Speed143.0 km/h / 88.9 mph-
Max Power25 kW / 34 hp @ 9500 rpm121 hp / 90 kW @ 7500 rpm
Max Torque28 Nm / 20.7 ft-lb @ 7500 rpm126 Nm / 93 lb-ft @ 6000 rpm
Power-to-Weight Ratio0.2115 HP/kg-
Engine
Fuel ControlDouble Overhead Cams/Twin Cam (DOHC)-
Engine TypeSingle cylinder, four-stroke-
Displacement (ci)19.10 cubic inches-
Displacement (cc)313.0 cc-
CO277.3 CO2 g/km. (CO2 - Carbon dioxide emission)-
Bore x Stroke (mm)80.0 x 62.1 mm-
Bore x Stroke (in,)3.1 x 2.4 inches-
Displacement313 cc / 19.1 cu in1252 cc / 76.4 cu-in
Engine DetailSingle cylinder, DOHC, 4 valvesFour stroke, 60° V-twin Revolution Max 1250, Chain-driven, DOHC, hydraulic self-adjusting lifters, intake & exhaust VVT, four valves per cylinder
Fuel SystemInjection-
Bore x Stroke80 x 62 mm105 x 72.3 mm
Compression Ratio10.6:112.0:1
Cooling SystemLiquid CooledLiquid cooled
EmissionsEuro 4-
Exhaust-2-into-1-into-2, catalyst in muffler
Exhaust valve diameter27.2 mm-
Fuel Consumption3.33 litres/100 km (30.0 km/l or 70.64 mpg)-
Fuel InductionBMS-E2Electronic Sequential Port Fuel Injection (ESPFI)
Lubrication-Semi-dry sump
StarterElectricElectric
Valve Diameter (Intake)33.5 mm-
EV Specifics
Battery Capacity12V, 8 Ah-
Drivetrain
ClutchWet multi-plateMechanical, 8 plate wet, assist & slip, 1090N
Final DriveChain, O-ringBelt, 34/80 ratio
Gear Ratios1st 3.000 / 2 nd 2.063 / 3rd 1.588 / 4th 10286 / 5th 1.095 / 6th 0.955:11st 12.21 / 2nd 9.022 / 3rd 6.994 / 4th 5.641 / 5th 4.731 / 6th 4.131
Primary Drive-Gear, 49/89 ratio
Primary Drive Ratios3.083:1-
Transmission / Drive6-Speed, constant-mesh6 Speed
Chassis
Frame TypeTubular steel frame in grid structure with bolt-on rear frameStressed-member, high strength low alloy steel trellis frame; stamped, cast, and forged junctions; MIG welded; aluminum forged mid-structure
Suspension - Front41mm Telescopic fork43 mm inverted fork with compression, rebound and spring preload adjustability. Aluminium fork triple clamps
Suspension - RearAluminium swinging arm in conjunction with a directly mounted spring strutLinkage-mounted, piggyback monoshock with compression, rebound and hydraulic spring preload adjustability
Fork Angle-28°
Lean Angle-35°
Rake-30°
Steering Head Angle64.9°-
Swingarm-High strength low alloy steel, tubular sections, stamped x-member, forged axle junctions; MIG welded
Trail102.3 mm / 4.02 in148 mm / 5.8 in
Wheel Travel - Front140 mm / 5.5 in92 mm / 3.6 in
Wheel Travel - Rear131 mm / 5.5 in82 mm / 3.2 in
Electrical Systems
Alternator330W-
Wheels & Brakes
Brakes - FrontSingle 300mm discSingle 320mm rotor, radially mounted, monoblock, 4-piston caliper
Brakes - RearSingle 240mm discSingle 260mm solid uniform expansion rotor, floating single piston caliper
ABSStandardStandard
Rims - Front3.0 x 174.5 x 17
Rims - Rear4.0 x 175.0 x 16
Tyres - Front110/70 R17160/70TR17 73V Dunlop- Harley-Davidson Series, radial, GT503
Tyres - Rear150/60 R17180/70R16 77V Dunlop- Harley-Davidson Series, radial, GT503
Wheels5-Spoke, light alloy die-castAluminum cast, satin black