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2021 BMW G 310GS Overview
The 2021 BMW G 310GS is a sport motorcycle built around 313 cc of displacement. Under the tank sits a Liquid-cooled single cylinder, four-stroke engine running Double Overhead Cams/Twin Cam (DOHC) valve actuation, a compression ratio of 10.9:1. 2021 BMW G 310GS delivers 25 kW @ 9500 rpm of peak power and 28 Nm @ 7500 rpm of torque. The factory-quoted top speed stands at 143 km/h, making it a capable performer in its class. From a practical standpoint, the 2021 G 310GS tips the scales at 175 kg, carries an 11-litre fuel tank, offers a seat height of 835 mm and spans a 1420 mm wheelbase. That's roughly 19.8 kg lighter than the average sport motorcycle in our database. Scroll down for the complete 2021 BMW G 310GS spec sheet covering every technical detail from suspension travel to tyre sizes.
2021 BMW G 310GS compared with other bikes in the Sport category
Here is how the 2021 BMW G 310GS stacks up against other bikes in the Sport category in our database. Each model counts once, using the model year closest to this one, and the comparison covers up to 1607 models.
- Seat height of 835 mm is taller than that of 1420 of the other 1606 bikes in the Sport category.
- Only 91 of the other 879 bikes in the Sport category have a lower top speed than the 143 km/h of the G 310GS.
- With 143 W/kg, the G 310GS has the 89th lowest power-to-weight ratio of 727 bikes in the Sport category, 63% below the category average of 386 W/kg.
- Narrowing the field to the 555 models within five model years of it, the seat height of 835 mm is taller than that of 448 of the other 554.
Versus the 2020 model
The figures we track are unchanged from the 2020 model: peak power, peak torque, wet weight, displacement, seat height and top speed all match.
2021 G 310GS - Pros & Cons
Strengths
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⚡
Strong power output: 2021 BMW G 310GS makes 25 kW @ 9500 rpm with 28 Nm @ 7500 rpm of torque - competitive figures for its class.
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Fuel injection: The fuel injectionwith front-intake 42mm throttle body system delivers crisp throttle response and reliable cold starts regardless of altitude or temperature.
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Strong front braking: The disc front brake gives excellent stopping power and responds well to aftermarket braided lines.
Considerations
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📏
Tall seat height: The 835 mm seat height will challenge shorter riders - tiptoeing at low speeds is something to factor into your decision.
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Modest fuel capacity: The 11-litre tank means more frequent fuel stops on longer rides, which is worth planning around on touring routes.
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Chain final drive upkeep: Chain final drive needs regular cleaning, lubrication and tension checks to get full life out of the sprockets.
Wear Points & Servicing Notes
Cooling system servicing
The Liquid cooled system on the G 310GS needs a coolant change roughly every two years (or per the service schedule) - skipping it lets the coolant turn acidic and corrode the aluminium water passages over time.
Fuelling & injector care
Fuelling comes from fuel injectionwith front-intake 42mm throttle body. Systems like this are largely maintenance-free beyond keeping fuel quality decent and injectors clear - a fuel-system cleaner every service interval is cheap insurance.
Valve clearance checks
Double Overhead Cams/Twin Cam (DOHC) valve actuation on the G 310GS means clearances should be checked at the manufacturer's specified interval - they can tighten as mileage accumulates, and a light top-end tick is usually the first sign.
Brake disc and pad wear
The disc front brake gives strong, progressive stopping power. Disc thickness and pad depth are worth checking at every tyre change, since worn pads can score the disc surface.
Suspension condition on used examples
Up front, the G 310GS runs 41mm Upside-down fork, non-adjustable and Linkage-free spring-preload adjustable shock at the rear. On a used example, check fork seals for weeping oil and test the rear linkage for play - seals are a relatively cheap fix but useful when negotiating price.
Final drive maintenance
Final drive is by chain - expect to clean and lube it every few hundred kilometres and check tension regularly; a neglected chain wears the sprockets faster than the chain itself.
Frame & chassis check
The frame is Tubular steel frame with bolted rear frame - worth a visual check for corrosion or impact damage around the head-stock and swingarm pivot on any used example, since frame damage is far costlier to fix than any service item.
G 310GS - Buying & Maintenance Guide
What to check before buying
When inspecting a used 2021 BMW G 310GS with its 313 cc sport, start with the basics: check the service book for oil change frequency, inspect the drivetrain for wear, and look for oil seepage around the engine casings and rocker covers. This model runs chain final drive, so check chain slack and sprocket tooth profile specifically - a worn sprocket is a cheaper fix now than after it's chewed up the next chain. Now 5 years old, this sport is as likely to show age-related wear (perished rubber, seized fasteners, degraded seals) as mileage-related wear. A cold start test is invaluable - a well-maintained G 310GS should fire up cleanly and settle to a smooth idle within a few seconds.
Oil and filter changes
Regular oil changes are the single most important maintenance task for the G 310GS's 313 cc liquid-cooled single cylinder, four-stroke. Stick to the manufacturer's interval - typically every 6,000 km or once a year, whichever comes first. With a 10.9:1 compression ratio, running the octane grade specified in the manual matters more than on a lower-compression engine. Always use the correct viscosity grade as specified in the owner's manual.
Carburetor upkeep
Keep the carburetors clean and free of deposits. If the G 310GS has been stored, strip and clean the carb float bowls before attempting to start it. Pilot jets are the first to block and the last to be checked - always include them in any carb rebuild.
Valve clearance service
Check that valve clearances have been adjusted at the correct intervals on any used G 310GS. A bike with clearances out of spec doesn't always feel obviously wrong - but tight clearances accelerate valve seat wear. Ask for service documentation proving it's been done.
2021 BMW G 310GS - Frequently Asked Questions
What engine does the 2021 BMW G 310GS have?
The 2021 BMW G 310GS uses a Liquid-cooled single cylinder, four-stroke engine with 313 cc of displacement. It is liquid cooled.
What is the top speed of the 2021 BMW G 310GS?
The 2021 BMW G 310GS has a factory-quoted top speed of 143 km/h. Real-world speeds vary depending on rider weight, conditions and state of tune.
How much does the 2021 BMW G 310GS weigh?
The 2021 BMW G 310GS weighs 175 kg. This is the manufacturer's wet figure.
How much power does the 2021 BMW G 310GS make?
The 2021 BMW G 310GS produces 25 kW @ 9500 rpm of power and 28 Nm @ 7500 rpm of torque. These are peak figures.
What is the fuel tank capacity of the 2021 BMW G 310GS?
The 2021 BMW G 310GS has an 11-litre fuel tank. At around 5-6 litres per 100 km, that is roughly 183-220 km between stops.
Is the 2021 BMW G 310GS suitable for shorter riders?
The 2021 BMW G 310GS has a seat height of 835 mm. This is towards the tall end of the spectrum and will require most riders under 175 cm to tiptoe at stops.
What brakes does the 2021 BMW G 310GS have?
The 2021 BMW G 310GS uses single 300mm disc, 4-piston fixed caliper, radially bolted at the front and single 240mm disc, single-piston floating caliper at the rear.
What tyre sizes does the 2021 BMW G 310GS use?
The 2021 BMW G 310GS runs 110/80 - R19 front and 150/70 - R17 rear tyres. A good selection of sport, touring and all-weather rubber is available in these sizes.
What gearbox does the 2021 BMW G 310GS have?
The 2021 BMW G 310GS is fitted with a 6-speed transmission.
BMW G 310GS Spec Evolution
The BMW G 310GS was produced across 7 model years (2017-2023). The table below highlights the key specifications that changed across the production run - useful whether you are comparing years or tracking down a specific variant.
| Specification |
2017 |
2018 |
2019 |
2020 |
2021 |
2022 |
2023 |
| Max Power |
25 kW / 34 hp @ at 9500 |
25 kW / 34 hp @ 9500 rpm |
25 kW / 34 hp @ 9500 rpm |
25 kW / 34 hp @ 9500 rpm |
25 kW / 34 hp @ 9500 rpm |
25 kW / 34 hp @ 9500 rpm |
- |
| Dry Weight |
- |
162.0 kg / 357.1 lbs |
162.0 kg / 357.1 lbs |
162.0 kg / 357.1 lbs |
175 kg / 385.8 lbs |
162.0 kg / 357.1 lbs |
175 kg / 385.8 lbs |
| Engine Detail |
Four stroke, rRearward-canted single-cylinder, DOHC, 4 valves |
Liquid-cooled single cylinder, four-stroke, backward-canted, 4 valves |
Liquid-cooled single cylinder, four-stroke, backward-canted, 4 valves |
Liquid-cooled single cylinder, four-stroke, backward-canted, 4 valves |
Liquid-cooled single cylinder, four-stroke, backward-canted, 4 valves |
Liquid-cooled single cylinder, four-stroke, backward-canted, 4 valves |
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| Engine Type |
Single cylinder, four-stroke |
Liquid-cooled single cylinder, four-stroke |
Liquid-cooled single cylinder, four-stroke |
Liquid-cooled single cylinder, four-stroke |
Liquid-cooled single cylinder, four-stroke |
Liquid-cooled single cylinder, four-stroke |
Single cylinder, four-stroke |
| Top Speed |
143.0 km/h / 88.9 mph |
143.0 km/h / 88.9 mph |
143.0 km/h / 88.9 mph |
143.0 km/h / 88.9 mph |
143.0 km/h / 88.9 mph |
141.6 km/h / 88.0 mph |
141.6 km/h / 88.0 mph |
| Seat Height |
835 mm / 32.9 in 820 mm / 32.2 in Low Seat 850 mm / 33.5 in Comfort Seat |
835 mm / 32.9 in |
835 mm / 32.9 in |
835 mm / 32.9 in |
835 mm / 32.9 in |
835 mm / 32.9 in |
833 mm / 32.8 in. |
| Fuel Capacity |
11 Litres / 2.9 US gal |
11 Litres / 2.9 US gal |
11 Litres / 2.9 US gal |
11 Litres / 2.9 US gal |
11 Litres / 2.9 US gal |
11 Litres / 2.9 US gal |
11.50 litres / 3.04 US gallons |
| CO2 |
- |
77.3 CO2 g/km. (CO2 - Carbon dioxide emission) |
77.3 CO2 g/km. (CO2 - Carbon dioxide emission) |
76.6 CO2 g/km. (CO2 - Carbon dioxide emission) |
76.6 CO2 g/km. (CO2 - Carbon dioxide emission) |
76.6 CO2 g/km. (CO2 - Carbon dioxide emission) |
76.6 CO2 g/km. (CO2 - Carbon dioxide emission) |
Key Specifications
Engine
Liquid-cooled single cylinder, four-stroke
Power
25 kW / 34 hp @ 9500 rpm
Torque
28 Nm / 2.86 kgf-m / 20.7 ft-lb @ 7500 rpm
Top Speed
143.0 km/h / 88.9 mph
Weight
175 kg / 385.8 lbs
Fuel Capacity
11 Litres / 2.9 US gal
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Full 2021 BMW G 310GS Specifications
Year
2021
Make
BMW
Model
G 310GS
Colours
Grey/Red/White/Blue, Grey/White/Black, Grey/Yellow
Make Model
BMW G 310GS
Seat Height
835 mm / 32.9 in
Wheelbase
1420 mm / 55.9 in
Height
1230 mm / 48.2 in (excl. mirrors)
Length
2075 mm / 81.7 in
Width
878 mm / 34.6 in (incl. mirrors)
Dry Weight
175 kg / 385.8 lbs
Fuel Capacity
11 Litres / 2.9 US gal
Wet Weight
175 kg / 385.8 lbs
CO2
76.6 CO2 g/km. (CO2 - Carbon dioxide emission)
Engine Type
Liquid-cooled single cylinder, four-stroke
Fuel Control
Double Overhead Cams/Twin Cam (DOHC)
Stroke
62.1 mm
Displacement
313 cc / 19.1 cu-in
Engine Detail
Liquid-cooled single cylinder, four-stroke, backward-canted, 4 valves
Fuel System
Injection
Bore x Stroke
80 x 62.1 mm
Compression Ratio
10.9:1
Cooling System
Liquid cooled
Emissions
Euro 5
Engine Lubrication
Wet sump
Exhaust
Single, closed-loop 3-way catalytic converter
Fuel Consumption
3.30 litres/100 km (30.3 km/l or 71.28 mpg)
Fuel Induction
EFI with front-intake 42mm throttle body
Fuel Reserve
1.00 litres / 0.26 US gallons
Fuel Type
Unleaded regular, minimum 91 RON
Ignition
Electronic
Lubrication
Wet sump
Starter
Electric
Valve System
4
Battery Capacity
12 V / 8 Ah, Maintenance free
Clutch
Wet multi-disc with assist-and-slipper function
Final Drive
Z-ring chain
Final Drive Ratio
1:2.50
Gearbox
6-speed
Primary Drive
Endless Z-ring chain with shock damping in rear wheel hub
Transmission / Drive
6-speed
Frame Type
Tubular steel frame with bolted rear frame
Suspension - Front
41mm Upside-down fork, non-adjustable
Suspension - Rear
Linkage-free spring-preload adjustable shock
Rake
26.7°
Steering Head Angle
63.3°
Trail
98 mm / 3.86 in
Wheel Travel - Front
180 mm / 7.1 in
Wheel Travel - Rear
180 mm / 7.1 in
Tachometer
Standard (Digital LCD multi-function display)
Alternator
308 W
Lighting system
LED headlights
Brakes - Front
Single 300mm disc, 4-piston fixed caliper, radially bolted
Brakes - Rear
Single 240mm disc, single-piston floating caliper
ABS
BMW Motorrad ABS
Rims
Cast aluminium
Tyres - Front
110/80 - R19
Tyres - Rear
150/70 - R17
Wheels
Cast aluminium
Wheels - Front
Cast aluminium, 5-spoke, 2.50 x 19
Wheels - Rear
Cast aluminium, 5-spoke, 4.0 x 17
Specifications are compiled from manufacturer documentation and cross-referenced
technical sources, and corrected on an ongoing basis.
Spot an error? Let us know.
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