Unveiled recently at the EICMA motorcycle show in Milan, is the new single-cylinder G 310 GS from BMW.
The small capacity GS is instantly recognisable as such, with its tall geometry, short wheelbase, upright seating position and all the typical characteristics of a GS model; minus the big donk.
Powering the bike is the same 313cc liquid-cooled single cylinder engine found in the BMW G 310 R, with four valves, an electronic fuel injection system and two overhead camshafts.
The bike is believed to sport an output of 25kW at 9500rpm and a maximum torque figure of 28Nm at 7500rpm — which is helped along by the bike’s low weight of 169.5kg.
A tubular steel spaceframe with a bolt-on rear section has been implemented to aid in torsional rigidity and create a stiff balance to improve steering response. A solid upside-down fork suspends the front, and the rear is handled by an aluminium swinging arm with a spring strut.
As with all BMW motorcycles, ABS is standard on the G 310 GS and can be switched off at the press of a button.
| BMW G 310 GS | ||
| Engine | ||
| Capacity | cc | 313 |
| Bore/stroke | mm | 80/62.1 |
| Output | kW/hp | 25/34 |
| at engine speed | rpm | 9500 |
| Torque | Nm | 28 |
| at engine speed | rpm | 7500 |
| Type | liquid-cooled single-cylinder engine | |
| No. of cylinders | 1 | |
| Compression/fuel | 10.6:1 / premium unleaded (95 RON) | |
| Valve/accelerator actuation | DOHC | |
| Valves per cylinder | 4 | |
| Ø intake/outlet | mm | 33.5/27.2 |
| Ø throttle valves | mm | 42 |
| Engine control | BMS-E2 | |
| Emission control | Closed-loop 3-way catalytic converter | |
| Electrical system | ||
| Alternator | W | 330 |
| Battery | V/Ah | 12/8 |
| Headlight | W | H4 12 V 60/55 W |
| Starter | kW | 0.5 |
| Power transmission – gearbox | ||
| Clutch | Multi-plate wet clutch | |
| Gearbox | constant-mesh 6-speed gearbox | |
| Primary ratio | 3.083 | |
| Transmission ratios I | 3.000 | |
| II | 2.063 | |
| III | 1.588 | |
| IV | 1.286 | |
| V | 1.095 | |
| VI | 0.955 | |
| Rear wheel drive | O-ring chain | |
| Suspension | ||
| Frame construction type | Tubular steel frame in grid structure with bolted rear frame | |
| Front wheel suspension | Upside-down fork ø 41mm | |
| Rear wheel suspension | Drawn die-cast aluminium, directly mounted central spring strut, adjustable spring rest |
|
| Suspension travel, front/rear | mm | 180/180 |
| Wheel castor | mm | 98 |
| Wheelbase | mm | 1,420 |
| Steering head angle | ° | 63.3 |
| Brakes | front | Single disc brake, Ø 300 mm |
| rear | Single disc brake, Ø 240 mm | |
| ABS | BMW Motorrad ABS | |
| BMW G 310 GS | ||
| Wheels | Aluminium cast wheels | |
| front | 2.50 x 17″ | |
| rear | 4.0 x 17″ | |
| Tyres | front | 110/80 R 19 |
| rear | 150/70 R 17 | |
| Dimensions and weights | ||
| Total length | mm | 2,075 |
| Total width (incl. hand levers) | mm | 880 |
| Seat height at unladen weight | mm | 835 |
| DIN unladen weight, road ready, fully fuelled |
kg | 169.5 |
| Permitted total weight | kg | 345 |
| Fuel tank capacity | l | 11 |
| Performance figures | ||
| Fuel consumption (WMTC) | l/100 km | 3.33 |
| Top speed | km/h | 143 |
