2021 · Adventure · Buyer's Guide
Lightweight GS That Delivers
The G 310 GS wraps the full GS silhouette around a 313 cc liquid-cooled single that makes 34 hp at 9,500 rpm and 21 lb-ft, fed through a six-speed box and a chain. A 19-inch front wheel, upside-down fork, and 7.1 in of travel at each end give it the real adventure geometry the badge promises, with BMW Motorrad ABS as the safety net. This is the smallest, lightest way into the GS family, built to carry the commanding upright stance and travel intent without the mass or the price that usually rides along with them.
On the road it rewards riders who value composure over muscle. It sits planted at speed, steers with almost no effort, and sips fuel at 71 mpg, so running costs stay low year after year. It suits newer riders, commuters, and weekend escapes more than long, remote expeditions. The honest caveats are real. The 2.9 gal tank keeps range short, and a handful of these engines have suffered valve or crankshaft failure past 30,000 miles, while some have seen the stator or voltage regulator quit early. Budget for careful valve-clearance checks and you protect the part that matters most.
Spec sheets don't ride bikes, but they set the baseline.
| Power | 34 hp (25 kW) @ 9,500 rpm |
|---|---|
| Torque | 21 lb-ft (28 Nm) @ 7,500 rpm |
| Displacement | 313 cc |
| Engine | Single-cylinder |
| Cooling | Liquid-cooled |
| Gearbox | 6-speed |
| Final drive | Chain |
| Fork | Upside-down (USD) |
| Front brake | 300 mm |
| Front tire | 110/80-19 |
| Rear tire | 150/70-17 |
| Wheelbase | 55.9 in (1420 mm) |
| Front travel | 7.1 in (180 mm) |
| Rear travel | 7.1 in (180 mm) |
| Seat height | 32.9 in (835 mm) |
| Fuel capacity | 2.9 gal (11 L) |
| Top speed | 88 mph (142 km/h) |
| Fuel economy | 71 mpg (US) |
Equipment check
Chassis
Comfort
Connectivity
Drivetrain
Lighting
Safety
Swing a leg over and the 32.9 in seat puts you high and upright, with a clear view down the road and bars that fall to hand without a stretch. Thumb the starter and the single settles into a busy, workmanlike thrum you feel through the pegs more than the grips. It stays surprisingly quiet at a cruise, so a full day in the saddle never wears on your ears. Around town it feels featherlight beneath you, easy to paddle and place, and it never turns top-heavy at a standstill. Wind it up toward its 88 mph top end and the vibration climbs with the revs, a plain reminder that this is a small single working hard rather than a big twin loafing. The whole package feels honest and unintimidating from the very first mile.
Here I gather what riders have told me over many years: emails after a long day out, questions at the roadside, and the chatter owners keep up among themselves. For the G 310 GS the picture is lopsided in a useful way. Agreement runs broad on what it does well; the reservations are fewer and point mostly at reliability, finish, and service.
The most repeated note is how light and willing it feels. Beginners and long-time owners alike describe a bike that turns and places itself with barely any effort. Close behind sits the riding position: upright, roomy at the bars, comfortable all day. The single also earns steady approval for smooth, usable power, and its low running costs come up about as often as anything.
The worries are thinner and cluster on the electrical side. Several owners report the stator or voltage regulator quitting early, draining the battery and stalling the bike, with dealers slow to pin down the fault. Others point to entry-level touches like the plastic rear brake hanger, the cast wheels, and the pre-LED signals, which read cheap next to the rest. In some areas the dealer experience frustrates as well, with high service costs and slow warranty work.
Catastrophic engine failure (valve drop, crankshaft) at higher mileage
A small number of owners have experienced valve failure or crankshaft derangement, typically beyond 30,000 miles, leading to complete engine destruction. Some suggest more frequent valve clearance inspections than BMW’s recommended 20,000 km interval to mitigate risk.
Stator/voltage regulator failure
The alternator or voltage regulator can fail prematurely, causing the battery to drain while riding and the motorcycle to stall, often requiring an alternator replacement under warranty.
Where this BMW G 310 GS pulls ahead of — or falls behind — its rivals on the numbers, and the typical bike in its class on character.
Power
Torque
Displacement
Seat height
Forget spec-sheet bragging. Here's who the G 310 GS is actually built for.
For serious slickrock and sand you'll love how light and forgiving it feels, but 34 hp and 7.1 in of travel set a real ceiling. It'll build skills and handle day trips, not conquer the hardest lines.
Made for Bar M / Kane Creek · Imperial Sand Dunes · Johnson Valley OHV Area
You plan multi-day BDRs around range and load capacity, and that's exactly where the little GS gets stretched. The 2.9 gal tank and modest muscle mean more fuel stops and lighter packing than your routes want.
Made for AZBDR — Arizona Backcountry Discovery Route · California BDR South · COBDR — Colorado Backcountry Discovery Route
It's stable and comfortable for unwinding on twisty day rides, but 200 to 400 mile stages test its small tank and modest pace. Great for relaxed scenery, less so when you want to cover big ground fast.
Made for Black Hills · Blue Ridge Parkway · Cherohala Skyway
If you're cross-shopping the older generation, here's what changed.
Previous generation · 2017–2020
The GS Badge, Featherweight
Compare to the previous model →