Suzuki Boulevard M109R B O S S - 2023 Specifications and Reviews

The 2023 Suzuki Boulevard M109R B O S S is a heavyweight cruiser powered by a massive 1783cc V-Twin engine producing 125 horsepower and 160 Nm of torque, making it ideal for riders seeking commanding low-end power and cruising comfort. Known for its aggressive styling and substantial presence, this custom cruiser excels at highway touring and commanding the road with its potent performance. Best suited to experienced riders who appreciate classic cruiser character combined with modern fuel injection technology and reliability.

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General information

CategoryCustom / cruiser
Year2023
ModelSuzuki Boulevard M109R B O S S

Engine and Transmission Specifications

Exhaust system2-into-1-into-2 stainless steel blacked-out
DrivelineConstant mesh
ClutchWet multi-plate
Transmission typeShaft drive (cardan)   (final drive)
Gearbox5-speed
Cooling systemLiquid
Lubrication systemSemi-dry sump
IgnitionElectronic ignition
Fuel controlDouble Overhead Cams/Twin Cam (DOHC)
Fuel systemInjection. Suzuki Dual Throttle Valve system
Valves per Cylinder4
Bore x Stroke112.0 x 90.5 mm (4.4 x 3.6 inches)
Compression10.5:1
Torque160.0 Nm (16.3 kgf-m or 118.0 ft.lbs) @ 3200 RPM
Power125.0 HP (91.2 kW) @ 6200 RPM
Engine details54-degree V-Twin
Engine typeV2, four-stroke
Capacity:1783.0 ccm (108.80 cubic inches)

Brakes, suspension, Frame and wheels

Rear brakesSingle disc. Single piston
Diameter310 mm (12.2 inches)
Front brakesDouble disc. Dual piston
Rear tire240/40-R18
Front tire130/70-R18
Rear wheel travel118 mm (4.6 inches)
Rear SuspensionLink style, solo shock, coil spring, oil damped
Front wheel travel130 mm (5.1 inches)
Front SuspensionBlacked-out, inverted telescopic, coil spring, oil damped
Frame typeDouble cradle, steel
 
 

Physical measures and capacities

Fuel capacity19.50 litres (5.15 US gallons)
Wheelbase1710 mm (67.3 inches)
Ground clearance130 mm (5.1 inches)
Overall width875 mm (34.4 inches)
Overall length2450 mm (96.5 inches)
Overall height1130 mm (44.5 inches)
Seat height705 mm (27.8 inches) If adjustable, lowest setting.
Weight incl. oil, gas, etc347.0 kg (765.0 pounds)

Other specs

MaintenanceFind parts, fluids, filters, maintenance tools and service items on eBay
CommentsSolo-seat cover (included) can be quickly swapped for the passenger seat. Blacked-out exhaust system, clutch cover, magneto cover, cylinder head covers, air cleaner cover, and final drive case.
Factory warranty12 Month Limited Warranty
InstrumentsDigital tachometer, gear position indicator, and LED indicator lights is integrated into the top of the headlight cowl
StarterElectric
Color optionsMetallic Triton Blue/Glass Sparkle Black, Candy Daring Red/Glass Sparkle Black

Performance Profile & Rider Fit

125 hp
Peak Power
3.6s
0-60 mph

Best For

Track20%
City45%
Cornering40%
Daily Riding55%
Touring62%
Passenger55%

Rider Profile

Best ForBest suited to experienced riders comfortable managing a heavy, powerful, long, low-slung cruiser at low speeds and in traffic.
PurposeBuilt for boulevard cruising and straight-line power thrills rather than nimble cornering or commuting efficiency.
Rider FitIts low seat height suits shorter riders but the substantial 347 kg mass demands solid strength and confidence when maneuvering at a stop or parking.
CharacterA muscular, torque-heavy V-twin cruiser with a massive rear tire and blacked-out custom styling that rewards relaxed, throttle-happy riding.
Not Ideal ForNot a good fit for riders seeking a lightweight, flickable bike for tight city streets or technical backroads.

Character map is an editorial estimate based on this bike's specifications, not a lab-tested measurement.

Rider Fit Visualizer

2023 Suzuki Boulevard M109R B O S S Rider Ergonomics Assessment

Calculated in your browser only - your height/inseam are never sent to our servers.

Feet:

At 705mm, a rider of 175cm with a 79cm (estimated) inseam will reach the ground with both feet flat on the 2023 Suzuki Boulevard M109R B O S S, with a cramped knee angle of around 80 degrees and an upright riding position.

Data quality: measured. Assumes about 30mm of suspension sag once seated (a typical street-bike rule of thumb - stiffer or softer suspension will vary). This is an approximation from category-typical geometry and generic body proportions, not a measurement of this specific bike or you - sit on it before you buy.

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Rider Reviews

Total comments: 1
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MotorcycleDB Review

The 2023 Suzuki Boulevard M109R B O S S is a powerful and stylish cruiser motorcycle that is built for those who crave speed and performance. With its 1783cc V-twin engine, this bike delivers plenty of power and torque for an exhilarating riding experience. The blacked-out styling and sleek design give the M109R B O S S a menacing and aggressive look that is sure to turn heads wherever you go. The comfortable seating position and high-quality suspension make this motorcycle a pleasure to ride, whether you're cruising around town or hitting the open road. Overall, the 2023 Suzuki Boulevard M109R B O S S is a top-of-the-line cruiser motorcycle that offers exceptional performance and style. If you're in the market for a powerful and reliable bike that will make a statement, the M109R B O S S is definitely worth considering. Whether you're a seasoned rider or new to the motorcycle scene, this bike is sure to provide an exciting and enjoyable riding experience that will leave you wanting more.
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