Cruisers

2020Suzuki Boulevard M109R B O S S

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The 2020 Suzuki Boulevard M109R B O S S is a cruiser built for riders seeking aggressive styling and commanding presence. Its 1783cc engine delivers substantial power and torque, while the blacked-out aesthetic and low-slung design define its muscular character. This bike excels for riders who prioritize visual impact and straightforward cruiser performance.

Capacity: 1783.0 ccm
Engine: V-Twin, four-stroke
Gearbox: 5-speed
Wet weight: 347.0 kg
Seat height: 705 mm
Power: 125.0 HP (91.2 kW) @ 6200 RPM

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What’s new for the 2020 Suzuki Boulevard M109R B O S S

vs the 2019

Spec	2019	2020
Front suspension	Inverted telescopic, coil spring, oil damped	Blacked-out, inverted telescopic, coil spring, oil damped

Other years 2014 2015 2016 2017 2018 2019 2020 2021 2022 2023 2024

How it rides

Editorial estimate from the spec sheet - not lab tested

Off-road & trail5%

Cornering40%

City riding45%

Daily riding55%

Touring62%

Two-up55%

Track20%

Best for: Built for boulevard cruising and straight-line power thrills rather than nimble cornering or commuting efficiency.
Built for: A muscular, torque-heavy V-twin cruiser with a massive rear tire and blacked-out custom styling that rewards relaxed, throttle-happy riding.
Not ideal for: Not a good fit for riders seeking a lightweight, flickable bike for tight city streets or technical backroads.

Scores are derived from the spec sheet using the same model across every bike, so they compare like for like.

Will it fit you?

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Your height

Inseam (optional)

Units

At 705mm, a rider of 68.9" with a 31" (estimated) inseam will reach the ground with both feet flat on the 2020 Suzuki Boulevard M109R B O S S, with a cramped knee angle of around 80 degrees and an upright riding position.

Assumes about 30mm of suspension sag once seated. This is an approximation from category-typical geometry, not a measurement of this bike or of you - sit on one before you buy.

More bikes at 750 mm or under — Short Kings →

Find bikes that fit your height →

Full specifications

Engine

Capacity: 1783.0 ccm
Power: 125.0 HP (91.2 kW) @ 6200 RPM
Torque: 160.0 Nm (16.3 kgf-m) @ 3200 RPM
Engine type: V-Twin, four-stroke
Power/weight ratio: 0.3602 HP/kg (wet)
Bore x stroke: 112.0 x 90.5 mm
Compression: 10.5:1
Cooling system: Liquid
Fuel system: Injection
Starting: Electric
Ignition: Electronic
Valves per cylinder: 4
Lubrication system: Wet sump

Transmission

Gearbox: 5-speed
Transmission type: Manual
Final drive: Shaft
Clutch: Wet multi-plate

Dimensions & weight

Wheelbase: 1710 mm
Overall length: 2450 mm
Overall width: 875 mm
Overall height: 1130 mm
Seat height: 705 mm
Wet weight: 347.0 kg
Fuel capacity: 18.60 litres
Ground clearance: 130 mm
Dry weight: Not on record - add it

Chassis & suspension

Frame: Double cradle, steel
Front suspension: Blacked-out, inverted telescopic, coil spring, oil damped
Rear suspension: Link style, solo shock, coil spring, oil damped
Front wheel travel: 130 mm
Rear wheel travel: 118 mm

Brakes & wheels

Front brakes: Double disc. Dual piston
Front brakes diameter: 310 mm
Rear brakes: Single disc. Single piston
Rear brakes diameter: 275 mm
Front tyre: 130/70-R18
Rear tyre: 240/40-R18

Other

Color options: Pearl Glacier White/Glass Sparkle Black, Metallic Oort Gray/Glass Sparkle Black
Warranty: 12
Comments: Solo-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.

Specs last verified against published sources: October 2026.

Compiled from manufacturer documentation and user contributions, corrected on an ongoing basis. Spotted something wrong? Tell us.

What changed, year to year

Differences highlighted

Specification	2014	2017	2019	2020	2022	2024
Capacity	1783 cc	1783 cc	1783 cc	1783 cc	1783 cc	1783 cc
Seat height	705 mm	705 mm	705 mm	705 mm	705 mm	705 mm
Fuel capacity	18.6 L	18.6 L	18.6 L	18.6 L	19.5 L	19.5 L

Illustrative - generated automatically by diffing the year records already on file, not a manufacturer-published changelog.

Rider Reviews

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MotorcycleDB

The 2020 Suzuki Boulevard M109R B O S S motorcycle is a top-of-the-line cruiser that offers unparalleled power and style. With its 1783cc V-twin engine, the M109R B O S S delivers a thrilling ride and impressive acceleration. The sleek, blacked-out design and bold, aggressive stance make this bike a head-turner on the road. The advanced chassis and suspension provide a smooth and comfortable ride, while the dual disc brakes offer responsive stopping power. Whether you're cruising around town or hitting the open highway, the M109R B O S S offers a commanding presence and exceptional performance.

Overall, the 2020 Suzuki Boulevard M109R B O S S motorcycle is a powerhouse of a cruiser that combines exceptional performance with striking design. Its powerful engine, advanced chassis, and sleek blacked-out appearance make it a standout choice for riders looking for a premium riding experience. Whether you're a seasoned rider or a newcomer to the world of cruisers, the M109R B O S S delivers a thrilling and comfortable ride that is sure to impress.

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