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2025 BMW R 12G/S Overview
The 2025 BMW R 12G/S is a custom / cruiser motorcycle built around 1170 cc of displacement. Under the tank sits a Four stroke, two cylinder horizontally opposed Boxer, with four camshaft-operated valves and two overhead camshafts per cylinder engine, a compression ratio of 12:1. 2025 BMW R 12G/S delivers 81 kW @ 7000 rpm of peak power and 115 Nm @ 6500 rpm of torque. From a practical standpoint, the 2025 R 12G/S tips the scales at 229 kg, carries a 15.5-litre fuel tank, offers a seat height of 860 mm and spans a 1580 mm wheelbase. Scroll down for the complete 2025 BMW R 12G/S spec sheet covering every technical detail from suspension travel to tyre sizes.
2025 R 12G/S - Pros & Cons
Strengths
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Strong power output: 2025 BMW R 12G/S makes 81 kW @ 7000 rpm with 115 Nm @ 6500 rpm of torque - competitive figures for its class.
Considerations
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Tall seat height: The 860 mm seat height will challenge shorter riders - tiptoeing at low speeds is something to factor into your decision.
Owner Experiences & Common Issues
Low-speed confidence
At 229 kg, the R 12G/S is a substantial machine. New owners occasionally mention that slow-speed manoeuvring in car parks takes a little getting used to. Once moving, the weight disappears - but practising slow-speed exercises builds confidence quickly.
R 12G/S - Buying & Maintenance Guide
What to check before buying
When inspecting a used 2025 BMW R 12G/S, 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 R 12G/S 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 R 12G/S. 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.
2025 BMW R 12G/S - Frequently Asked Questions
What engine does the 2025 BMW R 12G/S have?
The 2025 BMW R 12G/S uses a Four stroke, two cylinder horizontally opposed Boxer, with four camshaft-operated valves and two overhead camshafts per cylinder. engine with 1170 cc of displacement. It is air/oil cooled.
How much does the 2025 BMW R 12G/S weigh?
The 2025 BMW R 12G/S weighs 229 kg. This is the manufacturer's wet figure.
How much power does the 2025 BMW R 12G/S make?
The 2025 BMW R 12G/S produces 81 kW @ 7000 rpm of power and 115 Nm @ 6500 rpm of torque. These are peak figures.
What is the fuel tank capacity of the 2025 BMW R 12G/S?
The 2025 BMW R 12G/S has a 15.5-litre fuel tank.
Is the 2025 BMW R 12G/S suitable for shorter riders?
The 2025 BMW R 12G/S has a seat height of 860 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 2025 BMW R 12G/S have?
The 2025 BMW R 12G/S uses 2 x 310mm disc brake, with two axially bolted 2-piston floating calipers at the front and Single 265 mm disc, 2 piston floating caliper at the rear.
What tyre sizes does the 2025 BMW R 12G/S use?
The 2025 BMW R 12G/S runs 90/90/21 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 2025 BMW R 12G/S have?
The 2025 BMW R 12G/S is fitted with a 6-Speed, claw-shifted transmission with separate transmission housing transmission.
Key Specifications
Engine
Four stroke, two cylinder horizontally opposed Boxer, with four camshaft-operated valves and two overhead camshafts per cylinder.
Power
81 kW / 109 hp @ 7000 rpm
Torque
115 Nm / 81 lb-ft @ 6500 rpm
Fuel Capacity
15.5 Litres / 4.1 US gal
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Full 2025 BMW R 12G/S Specifications
Year
2025
Make Model
BMW R 12G/S
Seat Height
860 mm / 33.9 in (875 mm / 34.4 in Enduro Package)
Wheelbase
1580 mm / 62.2 in (1585 / 62.4 in Enduro Package)
Length
2200 mm / 86.6 in
Width
830 mm / 32.7 in
Fuel Capacity
15.5 Litres / 4.1 US gal
Wet Weight
229 kg / 505 lbs
Displacement
1170 cc / 71.4 cub in
Engine Detail
Four stroke, two cylinder horizontally opposed Boxer, with four camshaft-operated valves and two overhead camshafts per cylinder.
Bore x Stroke
101 x 73 mm
Compression Ratio
12:1
Cooling System
Air/oil cooled
Emissions
Controlled 3-way catalytic converter, exhaust emission standards EU-5+
Fuel Induction
Electronic intake pipe injection / digital engine management system: BMS-O with throttle-by-wire
Fuel Type
Unleaded super (premium), octane number 95-98 (RON) (rated output at 98 RON)
Lubrication
Wet sump
Starter
Electric
Clutch
Single dry plate clutch, hydraulically operated
Final Drive
Universal shaft
Gear Ratios
1st = 2.375, 2nd = 1.696, 3rd = 1.296, 4th = 1.065, 5th = 0.939, 6th = 0.848
Primary Drive Ratios
1.737
Transmission / Drive
6-Speed, claw-shifted transmission with separate transmission housing
Frame Type
Four-part frame concept with front frame and three-part rear frame, load-bearing engine-gearbox unit, rear-seat frame removeable for one-up riding
Suspension - Front
45 mm USD telescopic forks, spring base, rebound and compression damping adjustable
Suspension - Rear
Aluminum Paralever swinging arm, directly linked WAD spring strut, spring base, rebound and compression damping adjustable
Steering Head Angle
63.1° (63.2° Enduro Package)
Trail
120.8 mm / 4.76 in (121.3 / 4.76 Enduro Package)
Wheel Travel - Front
210 mm / 8.3 in
Wheel Travel - Rear
200 mm / 7.9 in
Brakes - Front
2 x 310mm disc brake, with two axially bolted 2-piston floating calipers
Brakes - Rear
Single 265 mm disc, 2 piston floating caliper
ABS
BMW Motorrad ABS Pro (lean angle optimised)
Rims - Front
2.15 x 21
Rims - Rear
4.0 x 17 (4.0 x 18 Enduro Package)
Tyres - Front
90/90/21
Tyres - Rear
150/70 - R17 (150/70 - R18 Enduro Package)
Wheels
Aluminium cross-spoke wheels
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