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2021 BMW G 310R Overview
The 2021 BMW G 310R is a sport motorcycle built around 313 cc of displacement. Under the tank sits a Single cylinder, four-stroke engine running Double Overhead Cams/Twin Cam (DOHC) valve actuation, a compression ratio of 10.9:1. 2021 BMW G 310R delivers 25 kW @ 9250 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 310R tips the scales at 164 kg, carries a 11-litre fuel tank, offers a seat height of 785 mm and spans a 1380 mm wheelbase. Scroll down for the complete 2021 BMW G 310R spec sheet covering every technical detail from suspension travel to tyre sizes.
2021 G 310R - Pros & Cons
Strengths
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Strong power output: 2021 BMW G 310R makes 25 kW @ 9250 rpm with 28 Nm @ 7500 rpm of torque - competitive figures for its class.
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Fuel injection: The fuel injection injection system delivers crisp throttle response and reliable cold starts regardless of altitude or temperature.
Considerations
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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.
Owner Experiences & Common Issues
Throttle response and fuelling
The fuel injection on the 2021 BMW G 310R is generally well-regarded. Some owners note a slight hesitation at small throttle openings when cold, which clears once the engine reaches operating temperature. A quick visual check of the injector connectors during routine servicing is good practice on higher-mileage examples.
Valve clearance checks
Double Overhead Cams/Twin Cam (DOHC) engines should have valve clearances checked at the manufacturer's specified interval. Owners report that clearances can tighten over time on higher-mileage bikes, leading to slight ticking from the top end. Catching it early keeps the job simple and avoids more costly remediation.
G 310R - Buying & Maintenance Guide
What to check before buying
When inspecting a used 2021 BMW G 310R, start with the basics: check the service book for oil change frequency, inspect the chain and sprockets for wear, and look for oil seepage around the engine casings and rocker covers. A cold start test is invaluable - a well-maintained G 310R 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 on any G 310R. Stick to the manufacturer's interval - typically every 6,000 km or once a year, whichever comes first. Always use the correct viscosity grade as specified in the owner's manual.
Fuel system care
The G 310R's fuel injection system is durable but benefits from quality fuel and the occasional use of a fuel-system cleaner additive. If the bike has been stored for more than three months, drain and replace the fuel to prevent varnish deposits in the injectors.
Valve clearance service
Check that valve clearances have been adjusted at the correct intervals on any used G 310R. This is a job many owners skip because the bike does not immediately feel wrong - but tight clearances accelerate valve seat wear. Ask for proof it has been done.
2021 BMW G 310R - Frequently Asked Questions
What engine does the 2021 BMW G 310R have?
The 2021 BMW G 310R uses a Single cylinder, four-stroke engine with 313 cc of displacement. It is liquid cooled.
What is the top speed of the 2021 BMW G 310R?
The 2021 BMW G 310R 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 310R weigh?
The 2021 BMW G 310R weighs 164 kg. This is the manufacturer's wet figure.
How much power does the 2021 BMW G 310R make?
The 2021 BMW G 310R produces 25 kW @ 9250 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 310R?
The 2021 BMW G 310R has a 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 310R suitable for shorter riders?
The 2021 BMW G 310R has a seat height of 785 mm. This is a moderate seat height that suits a wide range of rider heights.
What brakes does the 2021 BMW G 310R have?
The 2021 BMW G 310R 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 310R use?
The 2021 BMW G 310R runs 110/70 R17 front and 150/60 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 310R have?
The 2021 BMW G 310R is fitted with a 6-Speed, constant-mesh transmission.
BMW G 310R Spec Evolution
The BMW G 310R was produced across 8 model years (2016-2023). 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 |
2016 |
2017 |
2018 |
2019 |
2020 |
2021 |
2022 |
2023 |
| Max Power |
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 |
25 kW / 34 hp @ 9250 rpm |
25 kW / 34 hp @ 9250 rpm |
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| Wet Weight |
158.5 kg / 349 lbs |
158.5 kg / 349 lbs |
158.5 kg / 349 lbs |
158.5 kg / 349 lbs |
158.5 kg / 349 lbs |
164 kg / 361.5 lbs |
164 kg / 361.5 lbs |
164.2 kg / 362.0 lbs |
| Dry Weight |
- |
- |
- |
- |
158.5 kg / 349.4 lbs |
158.5 kg / 349.4 lbs |
158 kg / 348.3 lbs |
158 kg / 348.3 lbs |
| Engine Detail |
Single cylinder, DOHC, 4 valves |
Single cylinder, DOHC, 4 valves |
Single cylinder, DOHC, 4 valves |
Single cylinder, DOHC, 4 valves |
Single cylinder, DOHC, 4 valves |
Single cylinder, DOHC and cam followers, 4 valves |
Single cylinder, DOHC and cam followers, 4 valves |
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| Top Speed |
145 km/h / 90 mph |
145 km/h / 90 mph |
145 km/h / 90 mph |
145 km/h / 90 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 |
| Seat Height |
785 mm / 30.9 in |
785 mm / 30.9 in |
785 mm / 30.9 in |
785 mm / 30.9 in |
785 mm / 30.9 in |
785 mm / 30.9 in OA low seat: 770 mm / 30.3 in OE high seat: 800 mm / 31.4 in |
785 mm / 30.9 in OA low seat: 770 mm / 30.3 in OE high seat: 800 mm / 31.4 in |
785 mm / 30.9 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 Litres / 2.9 US gal |
10.98 litres / 2.90 US gallons |
| Frame Type |
Tubular steel frame in grid structure with bolt-on rear frame |
Tubular steel frame in grid structure with bolt-on rear frame |
Tubular steel frame in grid structure with bolt-on rear frame |
Tubular steel frame in grid structure with bolt-on rear frame |
Tubular steel frame in grid structure with bolt-on rear frame |
Tubular space frame |
Tubular space frame |
Tubular space |
Key Specifications
Engine
Single cylinder, four-stroke
Power
25 kW / 34 hp @ 9250 rpm
Torque
28 Nm / 20.7 ft-lb @ 7500 rpm
Top Speed
143.0 km/h / 88.9 mph
Weight
164 kg / 361.5 lbs
Fuel Capacity
11 Litres / 2.9 US gal
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Full 2021 BMW G 310R Specifications
Year
2021
Colours
Pearl White Metallic, Cosmic Black, Racing Red
Make Model
BMW G 310R
Seat Height
785 mm / 30.9 in OA low seat: 770 mm / 30.3 in OE high seat: 800 mm / 31.4 in
Wheelbase
1380 mm / 54.3 in
Height
1080 mm / 42.5 in
Length
2005 mm / 78.9 in
Width
849 mm / 33.4 in
Dry Weight
158.5 kg / 349.4 lbs
Fuel Capacity
11 Litres / 2.9 US gal
Wet Weight
164 kg / 361.5 lbs
CO2
77.3 CO2 g/km. (CO2 - Carbon dioxide emission)
Engine Type
Single cylinder, four-stroke
Fuel Control
Double Overhead Cams/Twin Cam (DOHC)
Displacement
313 cc / 19.1 cu in
Engine Detail
Single cylinder, DOHC and cam followers, 4 valves
Fuel System
Injection
Bore x Stroke
80 x 62.1 mm
Compression Ratio
10.9:1
Cooling System
Liquid Cooled
Emissions
Closed-loop 3-way catalytic converter, emission standard EU-5
Fuel Consumption
3.33 litres/100 km (30.0 km/l or 70.64 mpg)
Fuel Induction
Electronic fuel injection
Fuel Reserve
1.00 litres / 0.26 US gallons
Starter
Electric
Battery Capacity
12 V / 8 Ah, maintenance-free
Clutch
Multi-disc oil bath (anti-hopping) with self-reinforcement
Final Drive
Endless X-ring chain with shock damping in rear wheel hub
Transmission / Drive
6-Speed, constant-mesh
Frame Type
Tubular space frame
Suspension - Front
41mm USD telescopic fork
Suspension - Rear
Cast aluminium dual swing arm, central spring strut, spring pre-load adjustable
Steering Head Angle
64.9°
Trail
114 mm / 4.48 in
Wheel Travel - Front
140 mm / 5.5 in
Wheel Travel - Rear
131 mm / 5.5 in
Alternator
Three-phase alternator with 308 W
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 aluminum wheels
Rims - Front
3.0 x 17
Rims - Rear
4.0 x 17
Tyres - Front
110/70 R17
Tyres - Rear
150/60 R17
Wheels
5-Spoke, cast aluminium
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